Philosophical dialogue · Dialogue · Philosophical literatureLet us now suppose that in the mind of each man there is an aviary of all sorts of birds-some flocking together apart from the rest, others in small groups, others solitary, flying anywhere and everywhere... We may suppose that the birds are kinds of knowledge, and that when we were children, the receptacle was empty; whenever a man has gotten and detained in the enclosure a kind of knowledge, he may be said to have learned or discovered the thing which is the subject of the knowledge: and this is to know.SocratesPlato, Theaetetus · 369 BC★ 3.8
Philosophical dialogue · Dialogue · Philosophical literatureI would have you imagine, then, that there exists in the mind of man a block of wax, which is of different sizes in different men; harder, moister, and having more or less of purity in one than another, and in some of an intermediate quality... Let us say that this tablet is a gift of Memory, the mother of the Muses; and that when we wish to remember anything which we have seen, or heard, or thought in our own minds, we hold the wax to the perceptions and thoughts, and in that material receive the impression of them as from the seal of a ring; and that we remember and know what is imprinted as long as the image lasts; but when the image is effaced, or cannot be taken, then we forget and do not know.SocratesPlato, Theaetetus · 369 BC★ 3.8
Philosophical dialogue · Dialogue · Philosophical literatureWell, my art of midwifery is in most respects like theirs; but differs, in that I attend men and not women, and I look after their souls when they are in labor, and not after their bodies: and the triumph of my art is in thoroughly examining whether the thought which the mind of the young man brings forth is a false idol or a noble and true birth.SocratesPlato, Theaetetus · 369 BC★ 2.1