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)
““Just” or “right” means nothing but what is to the interest of the stronger.”
—Thrasymachus or Plato (fl. 430–410 B.C.)