STRANGER: The opinion that nature brings them into being from some spontaneous and unintelligent cause. Or shall we say that they are created by a divine reason and a knowledge which comes from God? THEAETETUS: I dare say that, owing to my youth, I may often waver in my view, but now when I look at you and see that you incline to refer them to God, I defer to your authority. STRANGER: Nobly said, Theaetetus, and if I thought that you were one of those who would hereafter change your mind, I would have gently argued with you, and forced you to assent; but as I perceive that you will come of yourself and without any argument of mine, to that belief which, as you say, attracts you, I will not forestall the work of time. Let me suppose, then, that things which are said to be made by nature are the work of divine art, and that things which are made by man out of these are works of human art. And so there are two kinds of making and production, the one human and the other divine. THEAETETUS: True. STRANGER: Then, now, subdivide each of the two sections which we have already. THEAETETUS: How do you mean? STRANGER: I mean to say that you should make a vertical division of production or invention, as you have already made a lateral one. THEAETETUS: I have done so. STRANGER: Then, now, there are in all four parts or segments--two of them have reference to us and are human, and two of them have reference to the gods and are divine. THEAETETUS: True. STRANGER: And, again, in the division which was supposed to be made in the other way, one part in each subdivision is the making of the things themselves, but the two remaining parts may be called the making of likenesses; and so the productive art is again divided into two parts. THEAETETUS: Tell me the divisions once more. STRANGER: I suppose that we, and the other animals, and the elements out of which things are made--fire, water, and the like--are known by us to be each and all the creation and work of God. THEAETETUS: True. STRANGER: And there are images of them, which are not them, but which correspond to them; and these are also the creation of a wonderful skill. THEAETETUS: What are they? STRANGER: The appearances which spring up of themselves in sleep or by day, such as a shadow when darkness arises in a fire, or the reflection which is produced when the light in bright and smooth objects meets on their surface with an external light, and creates a perception the opposite of our ordinary sight. THEAETETUS: Yes; and the images as well as the creation are equally the work of a divine hand. STRANGER: And what shall we say of human art? Do we not make one house by the art of building, and another by the art of drawing, which is a sort of dream created by man for those who are awake? THEAETETUS: Quite true.