Plato
Socrates, in a Platonic dialogue, described three principles derived from introspection.
irst, that nothing can become greater or less, either in number or magnitude, while remaining equal to itself … Secondly, that without addition or subtraction there is no increase or diminution of anything, but only equality … Thirdly, that what was not before cannot be afterwards, without becoming and having become.
— Plato, Theaetetus, 155
Read more about this topic: Law Of Thought
Famous quotes containing the word plato:
“It seems that I must bid the Muse to pack,
Choose Plato and Plotinus for a friend
Until imagination, ear and eye,
Can be content with argument and deal
In abstract things; or be derided by
A sort of battered kettle at the heel.”
—William Butler Yeats (1865–1939)
“A writer must always try to have a philosophy and he should also have a psychology and a philology and many other things. Without a philosophy and a psychology and all these various other things he is not really worthy of being called a writer. I agree with Kant and Schopenhauer and Plato and Spinoza and that is quite enough to be called a philosophy. But then of course a philosophy is not the same thing as a style.”
—Gertrude Stein (1874–1946)
“Our tradition of political thought had its definite beginning in the teachings of Plato and Aristotle. I believe it came to a no less definite end in the theories of Karl Marx.”
—Hannah Arendt (1906–1975)