Cur Deus Homo; Proslogion

CERTAIN brethren have often and earnestly entreated me to put in writing some thoughts that I had offered them in familiar conversation, regarding meditation on the Being of God, and on some other topics connected with this subject, under the form of a meditation on these themes. It is in accordance with their wish, rather than with my ability, that they have prescribed such a form for the writing of this meditation; in order that nothing in Scripture should be urged on the authority of Scripture itself, but that whatever the conclusion of independent investigation should declare to be true, should, in an unadorned style, with common proofs and with a simple argument, be briefly enforced by the cogency of reason, and plainly expounded in the light of truth. It was their wish also, that I should not disdain to meet such simple and almost foolish objections as occur to me.

This task I have long refused to undertake. And, reflecting on the matter, I have tried on many grounds to excuse myself; for the more they wanted this work to be adaptable to practical use, the more was what they enjoined on me difficult of execution. Overcome at last, however, both by the modest importunity of their entreaties and by the not contemptible sincerity of their zeal; and reluctant as I was because of the difficulty of my task and the weakness of my talent, I entered upon the work they asked for. But it is with pleasure inspired by their affection that, so far as I was able, I have prosecuted this work within the limits they set.

I was led to this undertaking in the hope that whatever I might accomplish would soon be overwhelmed with contempt, as by men disgusted with some worthless thing. For I know that in this book I have not so much satisfied those who entreated me, as put an end to the entreaties that followed me so urgently. Yet, somehow it fell out, contrary to my hope, that not only the brethren mentioned above, but several others, by making copies for their own use, condemned this writing to long remembrance. And, after frequent consideration, I have not been able to find that I have made in it any statement which is inconsistent with the writings of the Catholic Fathers, or especially with those of St. Augustine. Wherefore, if it shall appear to any man that I have offered in this work any thought that is either too novel or discordant with the truth, I ask him not to denounce me at once as one who boldly seizes upon new ideas, or as a maintainer of falsehood; but let him first read diligently Augustine's books on the Trinity, and then judge my treatise in the light of those.

In stating that the supreme Trinity may be said to consist of three substances, I have followed the Greeks, who acknowledge three substances in one Essence, in the same faith wherein we acknowledge three persons in one Substance. For they designate by the word substance that attribute of God which we designate by the word person.

Whatever I have said on that point, however, is put in the mouth of one debating and investigating in solitary reflection, questions to which he had given no attention before. And this method I knew to be in accordance with the wish of those whose request I was striving to fulfil. But it is my prayer and earnest entreaty, that if any shall wish to copy this work, he shall be careful to place this preface at the beginning of the book, before the body of the meditation itself. For I believe that one will be much helped in understanding the matter of this book, if he has taken note of the intention, and the method according to which it is discussed. It is my opinion, too, that one who has first seen this preface will not pronounce a rash judgment, if he shall find offered here any thought that is contrary to his own belief.

There is a being which is best, and greatest, and highest of all existing beings.

IF any man, either from ignorance or unbelief, has no knowledge of the existence of one Nature which is the highest of all existing beings, which is also sufficient to itself in its eternal blessedness, and which confers upon and effects in all other beings, through its omnipotent goodness, the very fact of their existence, and the fact that in any way their existence is good; and if he has no knowledge of many other things, which we necessarily believe regarding God and his creatures, he still believes that he can at least convince himself of these truths in great part, even if his mental powers are very ordinary, by the force of reason alone.

And, although he could do this in many ways, I shall adopt one which I consider easiest for such a man. For, since all desire to enjoy only those things which they suppose to be good, it is natural that this man should, at some time, turn his mind's eye to the examination of that cause by which these things are good, which he does not desire, except as he judges them to be good. So that, as reason leads the way and follows up these considerations, he advances rationally to those truths of which, without reason, he has no knowledge. And if, in this discussion, I use any argument which no greater authority adduces, I wish it to be received in this way: although, on the grounds that I shall see fit to adopt, the conclusion is reached as if necessarily, yet it is not, for this reason, said to be absolutely necessary, but merely that it can appear so for the time being.

It is easy, then, for one to say to himself: Since there are goods so innumerable, whose great diversity we experience by the bodily senses, and discern by our mental faculties, must we not believe that there is some one thing, through which all goods whatever are good? Or are they good one through one thing and another through another? To be sure, it is most certain and clear, for all who are willing to see, that whatsoever things are said to possess any attribute in such a way that in mutual comparison they may be said to possess it in greater, or less, or equal degree, are said to possess it by virtue of some fact, which is not understood to be one thing in one case and another in another, but to be the same in different cases, whether it is regarded as existing in these cases in equal or unequal degree. For, whatsoever things are said to be just, when compared one with another, whether equally, or more, or less, cannot be understood as just, except through the quality of justness, which is not one thing in one instance, and another in another.

Since it is certain, then, that all goods, if mutually compared, would prove either equally or unequally good, necessarily they are all good by virtue of something which is conceived of as the same in different goods, although sometimes they seem to be called good, the one by virtue of one thing, the other by virtue of another. For, apparently it is by virtue of one quality, that a horse is called good, because he is strong, and by virtue of another, that he is called good, because he is swift. For, though he seems to be called good by virtue of his strength, and good by virtue of his swiftness, yet swiftness and strength do not appear to be the same thing.

But if a horse, because he is strong and swift, is therefore good, how is it that a strong, swift robber is bad? Rather, then, just as a strong, swift robber is bad, because he is harmful, so a strong, swift horse is good, because he is useful. And, indeed, nothing is ordinarily regarded as good, except either for some utility—as, for instance, safety is called good, and those things which promote safety—or for some honorable character—as, for instance, beauty is reckoned to be good, and what promotes beauty.

But, since the reasoning which we have observed is in no wise refutable, necessarily, again, all things, whether useful or honorable, if they are truly good, are good through that same being through which all goods exist, whatever that being is. But who can doubt this very being, through which all goods exist, to be a great good? This must be, then, a good through itself, since every other good is through it.

It follows, therefore, that all other goods are good through another being than that which they themselves are, and this being alone is good through itself. Hence, this alone is supremely good, which is alone good through itself. For it is supreme, in that it so surpasses other beings, that it is neither equalled nor excelled. But that which is supremely good is also supremely great. There is, therefore, some one being which is supremely good, and supremely great, that is, the highest of all existing beings.

The same subject continued.

BUT, just as it has been proved that there is a being that is supremely good, since all goods are good through a single being, which is good through itself; so it is necessarily inferred that there is something supremely great, which is great through itself. But, I do not mean physically great, as a material object is great, but that which, the greater it is, is the better or the more worthy,—wisdom, for instance. And since there can be nothing supremely great except what is supremely good, there must be a being that is greatest and best, i. e., the highest of all existing beings.

There is a certain Nature through which whatever is exists, and which exists through itself, and is the highest of all existing beings.

THEREFORE, not only are all good things such through something that is one and the same, and all great things such through something that is one and the same; but whatever is, apparently exists through something that is one and the same. For, everything that is, exists either through something, or through nothing. But nothing exists through nothing. For it is altogether inconceivable that anything should not exist by virtue of something.

Whatever is, then, does not exist except through something. Since this is true, either there is one being, or there are more than one, through which all things that are exist. But if there are more than one, either these are themselves to be referred to some one being, through which they exist, or they exist separately, each through itself, or they exist mutually through one another.

But, if these beings exist through one being, then all things do not exist through more than one, but rather through that one being through which these exist.

If, however, these exist separately, each through itself, there is, at any rate, some power or property of existing through self (existendi per se), by which they are able to exist each through itself. But, there can be no doubt that, in that case, they exist through this very power, which is one, and through which they are able to exist, each through itself. More truly, then, do all things exist through this very being, which is one, than through these, which are more than one, which, without this one, cannot exist.

But that these beings exist mutually through one another, no reason can admit; since it is an irrational conception that anything should exist through a being on which it confers existence. For not even beings of a relative nature exist thus mutually, the one through the other. For, though the terms master and servant are used with mutual reference, and the men thus designated are mentioned as having mutual relations, yet they do not at all exist mutually, the one through the other, since these relations exist through the subjects to which they are referred.

Therefore, since truth altogether excludes the supposition that there are more beings than one, through which all things exist, that being, through which all exist, must be one. Since, then, all things that are exist through this one being, doubtless this one being exists through itself. Whatever things there are else then, exist through something other than themselves, and this alone through itself. But whatever exists through another is less than that, through which all things are, and which alone exists through itself. Therefore, that which exists through itself exists in the greatest degree of all things.

There is, then, some one being which alone exists in the greatest and the highest degree of all. But that which is greatest of all, and through which exists whatever is good or great, and, in short, whatever has any existence—that must be supremely good, and supremely great, and the highest of all existing beings.

The same subject continued.

FURTHERMORE, if one observes the nature of things he perceives, whether he will or no, that not all are embraced in a single degree of dignity; but that certain among them are distinguished by inequality of degree. For, he who doubts that the horse is superior in its nature to wood, and man more excellent than the horse, assuredly does not deserve the name of man. Therefore, although it cannot be denied that some natures are superior to others, nevertheless reason convinces us that some nature is so preeminent among these, that it has no superior. For, if the distinction of degrees is infinite, so that there is among them no degree, than which no higher can be found, our course of reasoning reaches this conclusion: that the multitude of natures themselves is not limited by any bounds. But only an absurdly foolish man can fail to regard such a conclusion as absurdly foolish. There is, then, necessarily some nature which is so superior to some nature or natures, that there is none in comparison with which it is ranked as inferior.

Now, this nature which is such, either is single, or there are more natures than one of this sort, and they are of equal degree.

But, if they are more than one and equal, since they cannot be equal through any diverse causes, but only through some cause which is one and the same, that one cause, through which they are equally so great, either is itself what they are, that is, the very essence of these natures; or else it is another than what they are.

But if it is nothing else than their very essence itself, just as they have not more than one essence, but a single essence, so they have not more than one nature, but a single nature. For I here understand nature as identical with essence.

If, however, that through which these natures are so great is another than that which they are, then, certainly, they are less than that through which they are so great. For, whatever is great through something else is less than that through which it is great. Therefore, they are not so great that there is nothing else greater than they.

But if, neither through what they are nor through anything other than themselves, can there be more such natures than one, than which nothing else shall be more excellent, then in no wise can there be more than one nature of this kind. We conclude, then, that there is some nature which is one and single, and which is so superior to others that it is inferior to none. But that which is such is the greatest and best of all existing beings. Hence, there is a certain nature which is the highest of all existing beings. This, however, it cannot be, unless it is what it is through itself, and all existing beings are what they are through it.

For since, as our reasoning showed us not long since, that which exists through itself, and through which all other things exist, is the highest of all existing beings; either conversely, that which is the highest exists through itself, and all others through it; or, there will be more than one supreme being. But it is manifest that there cannot be more than one supreme being. There is, therefore, a certain Nature, or Substance, or Essence, which is through itself good and great, and through itself is what it is; and through which exists whatever is truly good, or great, or has any existence at all; and which is the supreme good being, the supreme great being, being or subsisting as supreme, that is, the highest of all existing beings.

Just as this Nature exists through itself, and other beings through it, so it derives existence from itself, and other beings from it.

SEEING, then, that the truth already discovered has been satisfactorily demonstrated, it is profitable to examine whether this Nature, and all things that have any existence, derive existence from no other source than it, just as they do not exist except through it.

But it is clear that one may say, that what derives existence from something exists through the same thing; and what exists through something also derives existence from it. For instance, what derives existence from matter, and exists through the artificer, may also be said to exist through matter, and to derive existence from the artificer, since it exists through both, and derives existence from both. That is, it is endowed with existence by both, although it exists through matter and from the artificer in another sense than that in which it exists through, and from, the artificer.

It follows, then, that just as all existing beings are what they are, through the supreme Nature, and as that Nature exists through itself, but other beings through another than themselves, so all existing beings derive existence from this supreme Nature. And therefore, this Nature derives existence from itself, but other beings from it.

This Nature was not brought into existence with the help of any external cause, yet it does not exist through nothing, or derive existence from nothing.—How existence through self, and derived from self, is conceivable.

SINCE the same meaning is not always attached to the phrase, "existence through" something, or, to the phrase, "existence derived from" something, very diligent inquiry must be made, in what way all existing beings exist through the supreme Nature, or derive existence from it. For, what exists through itself, and what exists through another, do not admit the same ground of existence. Let us first consider, separately, this supreme Nature, which exists through self; then these beings which exist through another.

Since it is evident, then, that this Nature is whatever it is, through itself, and all other beings are what they are, through it, how does it exist through itself? For, what is said to exist through anything apparently exists through an efficient agent, or through matter, or through some other external aid, as through some instrument. But, whatever exists in any of these three ways exists through another than itself, and is of later existence, and, in some sort, less than that through which it obtains existence.

But, in no wise does the supreme Nature exist through another, nor is it later or less than itself or anything else. Therefore, the supreme Nature could be created neither by itself, nor by another; nor could itself or any other be the matter whence it should be created; nor did it assist itself in any way; nor did anything assist it to be what it was not before.

What is to be inferred? For that which cannot have come into existence by any creative agent, or from any matter, or with any external aids, seems either to be nothing, or, if it has any existence, to exist through nothing, and derive existence from nothing. And although, in accordance with the observations I have already made, in the light of reason, regarding the supreme Substance, I should think such propositions could in no wise be true in the case of supreme Substance; yet, I would not neglect to give a connected demonstration of this matter.

For, seeing that this my meditation has suddenly brought me to an important and interesting point, I am unwilling to pass over carelessly even any simple or almost foolish objection that occurs to me, in my argument; in order that by leaving no ambiguity in my discussion up to this point, I may have the better assured strength to advance toward what follows; and in order that if, perchance, I shall wish to convince any one of the truth of my speculations, even one of the slower minds, through the removal of every obstacle, however slight, may acquiesce in what it finds here.

That this Nature, then, without which no nature exists, is nothing, is as false as it would be absurd to say that whatever is is nothing. And, moreover, it does not exist through nothing, because it is utterly inconceivable that what is something should exist through nothing. But, if in any way it derives existence from nothing, it does so through itself, or through another, or through nothing. But it is evident that in no wise does anything exist through nothing. If, then, in any way it derives existence from nothing, it does so either through itself or through another.

But nothing can, through itself, derive existence from nothing, because if anything derives existence from nothing, through something, then that through which it exists must exist before it. Seeing that this Being, then, does not exist before itself, by no means does it derive existence from itself.

But if it is supposed to have derived existence from some other nature, then it is not the supreme Nature, but some inferior one, nor is it what it is through itself, but through another.

Again: if this Nature derives existence from nothing, through something, that through which it exists was a great good, since it was the cause of good. But no good can be understood as existing before that good, without which nothing is good; and it is sufficiently clear that this good, without which there is no good, is the supreme Nature which is under discussion. Therefore, it is not even conceivable that this Nature was preceded by any being, through which it derived existence from nothing.

Hence, if it has any existence through nothing, or derives existence from nothing, there is no doubt that either, whatever it is, it does not exist through itself, or derive existence from itself, or else it is itself nothing. It is unnecessary to show that both these suppositions are false. The supreme Substance, then, does not exist through any efficient agent, and does not derive existence from any matter, and was not aided in being brought into existence by any external causes. Nevertheless, it by no means exists through nothing, or derives existence from nothing; since, through itself and from itself, it is whatever it is.

Finally, as to how it should be understood to exist through itself, and to derive existence from itself: it did not create itself, nor did it spring up as its own matter, nor did it in any way assist itself to become what it was not before, unless, haply, it seems best to conceive of this subject in the way in which one says that the light lights or is lucent, through and from itself. For, as are the mutual relations of the light and to light and lucent (lux, lucere, lucens), such are the relations of essence, and to be and being, that is, existing or subsisting. So the supreme Being, and to be in the highest degree, and being in the highest degree, bear much the same relations, one to another, as the light and to light and lucent.

In what way all other beings exist through this Nature and derive existence from it.

THERE now remains the discussion of that whole class of beings that exist through another, as to how they exist through the supreme Substance, whether because this Substance created them all, or because it was the material of all. For, there is no need to inquire whether all exist through it, for this reason, namely, that there being another creative agent, or another existing material, this supreme Substance has merely aided in bringing about the existence of all things: since it is inconsistent with what has already been shown, that whatever things are should exist secondarily, and not primarily, through it.

First, then, it seems to me, we ought to inquire whether that whole class of beings which exist through another derive existence from any material. But I do not doubt that all this solid world, with its parts, just as we see, consists of earth, water, fire, and air. These four elements, of course, can be conceived of without these forms which we see in actual objects, so that their formless, or even confused, nature appears to be the material of all bodies, distinguished by their own forms.—I say that I do not doubt this. But I ask, whence this very material that I have mentioned, the material of the mundane mass, derives its existence. For, if there is some material of this material, then that is more truly the material of the physical universe.

If, then, the universe of things, whether visible or invisible, derives existence from any material, certainly it not only cannot be, but it cannot even be supposed to be, from any other material than from the supreme Nature or from itself, or from some third being—but this last, at any rate, does not exist. For, indeed, nothing is even conceivable except that highest of all beings, which exists through itself, and the universe of beings which exist, not through themselves, but through this supreme Being. Hence, that which has no existence at all is not the material of anything.

From its own nature the universe cannot derive existence, since, if this were the case, it would in some sort exist through itself and so through another than that through which all things exist. But all these suppositions are false.

Again, everything that derives existence from material derives existence from another, and exists later than that other. Therefore, since nothing is other than itself, or later than itself, it follows that nothing derives material existence from itself.

But if, from the material of the supreme Nature itself, any lesser being can derive existence, the supreme good is subject to change and corruption. But this it is impious to suppose. Hence, since everything that is other than this supreme Nature is less than it, it is impossible that anything other than it in this way derives existence from it.

Furthermore: doubtless that is in no wise good, through which the supreme good is subjected to change or corruption. But, if any lesser nature derives existence from the material of the supreme good, inasmuch as nothing exists whencesoever, except through the supreme Being, the supreme good is subjected to change and corruption through the supreme Being itself. Hence, the supreme Being, which is itself the supreme good, is by no means good; which is a contradiction. There is, therefore, no lesser nature which derives existence in a material way from the supreme Nature.

Since, then, it is evident that the essence of those things which exist through another does not derive existence as if materially, from the supreme Essence, nor from itself, nor from another, it is manifest that it derives existence from no material. Hence, seeing that whatever is exists through the supreme Being, nor can aught else exist through this Being, except by its creation, or by its existence as material, it follows, necessarily, that nothing besides it exists, except by its creation. And, since nothing else is or has been, except that supreme Being and the beings created by it, it could create nothing at all through any other instrument or aid than itself. But all that it has created, it has doubtless created either from something, as from material, or from nothing.

Since, then, it is most patent that the essence of all beings, except the supreme Essence, was created by that supreme Essence, and derives existence from no material, doubtless nothing can be more clear than that this supreme Essence nevertheless produced from nothing, alone and through itself, the world of material things, so numerous a multitude, formed in such beauty, varied in such order, so fitly diversified.

How it is to be understood that this Nature created all things from nothing.

BUT we are confronted with a doubt regarding this term nothing. For, from whatever source anything is created, that source is the cause of what is created from it, and, necessarily, every cause affords some assistance to the being of what it effects. This is so firmly believed, as a result of experience, by every one, that the belief can be wrested from no one by argument, and can scarcely be purloined by sophistry.

Accordingly, if anything was created from nothing, this very nothing was the cause of what was created from it. But how could that which had no existence, assist anything in coming into existence? If, however, no aid to the existence of anything ever had its source in nothing, who can be convinced, and how, that anything is created out of nothing?

Moreover, nothing either means something, or does not mean something. But if nothing is something, whatever has been created from nothing has been created from something. If, however, nothing is not something; since it is inconceivable that anything should be created from what does not exist, nothing is created from nothing; just as all agree that nothing comes from nothing. Whence, it evidently follows, that whatever is created is created from something; for it is created either from something or from nothing. Whether, then, nothing is something, or nothing is not something, it apparently follows, that whatever has been created was created from something.

But, if this is posited as a truth, then it is so posited in opposition to the whole argument propounded in the preceding chapter. Hence, since what was nothing will thus be something, that which was something in the highest degree will be nothing. For, from the discovery of a certain Substance existing in the greatest degree of all existing beings, my reasoning had brought me to this conclusion, that all other beings were so created by this Substance, that that from which they were created was nothing. Hence, if that from which they were created, which I supposed to be nothing, is something, whatever I supposed to have been ascertained regarding the supreme Being, is nothing.

What, then, is to be our understanding of the term nothing?—For I have already determined not to neglect in this meditation any possible objection, even if it be almost foolish.—In three ways, then—and this suffices for the removal of the present obstacle—can the statement that any substance was created from nothing be explained.

There is one way, according to which we wish it to be understood, that what is said to have been created from nothing has not been created at all; just as, to one who asks regarding a dumb man, of what he speaks, the answer is given, "of nothing," that is, he does not speak at all. According to this interpretation, to one who enquires regarding the supreme Being, or regarding what never has existed and does not exist at all, as to whence it was created, the answer, "from nothing" may properly be given; that is, it never was created. But this answer is unintelligible in the case of any of those things that actually were created.

There is another interpretation which is, indeed, capable of supposition, but cannot be true; namely, that if anything is said to have been created from nothing, it was created from nothing itself (de nihilo ipso), that is, from what does not exist at all, as if this very nothing were some existent being, from which something could be created. But, since this is always false, as often as it is assumed an irreconcilable contradiction follows.

There is a third interpretation, according to which a thing is said to have been created from nothing, when we understand that it was indeed created, but that there is not anything whence it was created. Apparently it is said with a like meaning, when a man is afflicted without cause, that he is afflicted "over nothing."

If, then, the conclusion reached in the preceding chapter is understood in this sense, that with the exception of the supreme Being all things have been created by that Being from nothing, that is, not from anything; just as this conclusion consistently follows the preceding arguments, so, from it, nothing inconsistent is inferred; although it may be said, without inconsistency or any contradiction, that what has been created by the creative Substance was created from nothing, in the way that one frequently says a rich man has been made from a poor man, or that one has recovered health from sickness; that is, he who was poor before, is rich now, as he was not before; and he who was ill before, is well now, as he was not before.

In this way, then, we can understand, without inconsistency, the statement that the creative Being created all things from nothing, or that all were created through it from nothing; that is, those things which before were nothing, are now something. For, indeed, from the very word that we use, saying that it created them or that they were created, we understand that when this Being created them, it created something, and that when they were created, they were created only as something. For so, beholding a man of very lowly fortunes exalted with many riches and honors by some one, we say, "Lo, he has made that man out of nothing"; that is, the man who was before reputed as nothing is now, by virtue of that other's making, truly reckoned as something.