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Date: 360-355 B.C.

While having knowledge may be analogous to a man who "has" birds in an aviary, "in another sense he 'has' none of them, though he has got control of them, now that he has made them captive in an enclosure of his own; he can take and have hold of them whenever he likes by catching any bird he choo...

— Plato (427 BC - 347 BC)

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Date: 360-355 B.C.

"Once more then, just as a while ago we imagined a sort of waxen block in our minds, so now let us suppose that every mind contains a kind of aviary stocked with birds of every sort, some in flocks apart from the rest, some in small groups, and some solitary, flying in any direction among them all."

— Plato (427 BC - 347 BC)

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Date: 360-355 B.C.

"When we are babies we must suppose this receptacle empty, and take the birds to stand for pieces of knowledge."

— Plato (427 BC - 347 BC)

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Date: 360-355 B.C.

"Perhaps, Socrates, we were wrong in making the birds stand for pieces of knowledge only, and we ought to have imagined pieces of ignorance flying about with them in the mind."

— Plato (427 BC - 347 BC)

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Date: 360 B.C.

"For it does not admit of exposition like other branches of knowledge; but after much converse about the matter itself and a life lived together, suddenly a light, as it were, is kindled in one soul by a flame that leaps to it from another, and thereafter sustains itself."

— Plato (427 BC - 347 BC)

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Date: 360-355 B.C.

"Well, 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 labour, 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 b...

— Plato (427 BC - 347 BC)

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Date: 355-347 B.C.

"Would you have us raise a laugh by express statutes directing the pregnant mother to take constitutionals, to mold her infant, when she has borne it, like so much wax while it is still plastic, and to keep it swaddled for its first two years? "

— Plato (427 BC - 347 BC)

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Date: w. 350 B.C.

The soul "is substance in the sense which corresponds to the definitive formula of a thing's essence."

— Aristotle (384-322 B.C.)

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Date: w. 350 B.C.

"Voice is a kind of sound characteristic of what has soul in it; nothing that is without soul utters voice, it being only by a metaphor that we speak of the voice of a flute or the lyre or generally of what (being without soul) possesses the power of producing a succession of notes which differ i...

— Aristotle (384-322 B.C.)

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Date: w. 350 B.C.

"It follows that the soul is analogous to the hand; for as the hand is a tool of tools, so the mind is the form of forms and sense the form of sensible things."

— Aristotle (384-322 B.C.)

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The Mind is a Metaphor is authored by Brad Pasanek, Assistant Professor of English, University of Virginia.