Socrates

"Do not do to others what angers you if done to you by others."

"Quotes by Socrates are often written by Plato and Xenophon, not by Socrates himself, since he left no writings."

"There is no possession more valuable than a good and faithful friend."

"No one is wiser for his learning."

"Let him that would move the world first move himself."

"To fear death is nothing other than to think oneself wise when one is not."

"Virtue is knowledge; it cannot be taught."

"The greatest wealth is a poverty of desires."

"Children today are tyrants. They contradict their parents, gobble their food, and tyrannize their teachers."

"Employ your time in improving yourself by other men's writings."

"To find therapy in logical discussion is the greatest privilege of the philosopher."

"A man who makes no mistakes has not tried anything new."

"Once we perceive something, we assume we understand it."

"The only thing I know is the fact of my ignorance."

"Wealth does not bring about excellence, but excellence makes wealth and everything else good for men, both individually and collectively."

"If you are not sure of a man, how can you trust him with anything important?"

"The politician is an acrobat; he keeps his balance by doing the opposite of what he says."

"Know thyself."

"It is better to suffer injustice than to commit it."

"The only true good is knowledge, and the only true evil is ignorance."

"Are you not ashamed of caring so much for the making of money and for fame and prestige, when you neither think nor care about wisdom and truth and the improvement of your soul?"

"The secret to getting ahead is getting started."

"To move the world we must move ourselves."

"Our prayers should be for blessings in general, for God knows best what is good for us."

"From the deepest desires often come the deadliest hate."

"He who is greatest among you must be your servant."

"The mind is everything. What you think you become."

"I am the wisest man alive, for I know one thing and that is that I know nothing."

"Virtue is the highest good."

"The poet is a light and winged and holy thing, and there is no invention in him until he has been inspired and is out of his senses."