Phaedo. But it is most absurd to call things of that sort causes. If anyone were to say that I could not have done what I thought proper if I had not bones and sinews and other things that I have, he would be right. But to say that those things are the cause of my doing what I do, and that I act with intelligence but not from the choice of what is best, would be an extremely careless way of talking. Whoever talks in that way is unable to make a distinction and to see that in reality a cause is one thing, and the thing without which the cause could never be a cause is quite another thing. And so it seems to me that most people, when they give the name of cause to the latter, are groping in the dark, as it were, and are giving it a name that does not belong to it. And so one man makes the earth stay below the heavens by putting a vortex about it, and another regards the earth as a flat trough supported on a foundation of air; but they do not look for the power which causes things to be now placed as it is best for them to be placed, nor do they think it has any divine force, but they think they can find a new Atlas more powerful and more immortal and more all-embracing than this, and in truth they give no thought to the good, which must embrace and hold together all things. Now I would gladly be the pupil of anyone who would teach me the nature of such a cause; but since that was denied me and I was not able to discover it myself or to learn of it from anyone else, do you wish me, Cebes, said he, to give you an account of the way in which I have conducted my second voyage in quest of the cause?I wish it with all my heart, he replied.After this, then, said he, since I had given up investigating realities, I decided that I must be careful not to suffer the misfortune which happens to people who look at the sun and watch it during an eclipse. For some of them ruin their eyes unless they look at its image in water or something of the sort. I thought of that danger, and I was afraid my soul would be blinded if I looked at things with my eyes and tried to grasp them with any of my senses. So I thought I must have recourse to conceptions and examine in them the truth of realities.

Phaedo. Now perhaps my metaphor is not quite accurate; for I do not grant in the least that he who studies realities by means of conceptions is looking at them in images any more than he who studies them in the facts of daily life. However, that is the way I began. I assume in each case some principle which I consider strongest, and whatever seems to me to agree with this, whether relating to cause or to anything else, I regard as true, and whatever disagrees with it, as untrue. But I want to tell you more clearly what I mean; for I think you do not understand now.Not very well, certainly, said Cebes. Well, said Socrates, this is what I mean. It is nothing new, but the same thing I have always been saying, both in our previous conversation and elsewhere. I am going to try to explain to you the nature of that cause which I have been studying, and I will revert to those familiar subjects of ours as my point of departure and assume that there are such things as absolute beauty and good and greatness and the like. If you grant this and agree that these exist, I believe I shall explain cause to you and shall prove that the soul is immortal.You may assume, said Cebes, that I grant it, and go on.Then, said he, see if you agree with me in the next step. I think that if anything is beautiful besides absolute beauty it is beautiful for no other reason than because it partakes of absolute beauty; and this applies to everything. Do you assent to this view of cause?I do, said he.Now I do not yet, understand, he went on, nor can I perceive those other ingenious causes. If anyone tells me that what makes a thing beautiful is its lovely color, or its shape or anything else of the sort, I let all that go, for all those things confuse me, and I hold simply and plainly and perhaps foolishly to this, that nothing else makes it beautiful but the presence or communion (call it which you please) of absolute beauty, however it may have been gained; about the way in which it happens, I make no positive statement as yet, but I do insist that beautiful things are made beautiful by beauty. For I think this is the safest answer I can give to myself or to others, and if I cleave fast to this, I think I shall never be overthrown, and I believe it is safe for me or anyone else to give this answer, that beautiful things are beautiful through beauty. Do you agree?I do.And great things are great and greater things greater by greatness, and smaller things smaller by smallness?Yes.