The same ideas, one must believe, recur in men's minds not once or twice but again and again.
AristotleHe who can be, and therefore is, another's, and he who participates in reason enough to apprehend, but not to have, is a slave by nature.
AristotleYou will never do anything in this world without courage. It is the greatest quality of the mind next to honor.
AristotleWhile most of those who hold that the whole heaven is finite say that the earth lies at the center, the philosophers of Italy, the so-called Pythagoreans, assert the contrary. They say that in the middle there is fire, and that the earth is one of the stars, and by its circular motion round the center produces night and day.
Aristotle