“I am not an Athenian or a Greek, but a citizen of the world.”

“False words are not only evil in themselves, but they infect the soul with evil.”

“One should never do wrong in return, nor mistreat any man, no matter how one has been mistreated by him.”

“Bad men live that they may eat and drink, whereas good men eat and drink that they may live.”

“How many things I have no need of!”

“I know nothing except the fact of my ignorance.”

“Happiness is the final and perfect fruit of obedience to the laws of life.”

“The highest result of education is tolerance.”

“Example is the best lesson there is.”

“Only a man's character is the real criterion of worth.”

“It isn't enough to talk about peace. One must believe in it. And it isn't enough to believe in it. One must work at it.”

“In the long run, we shape our lives and we shape ourselves. The process never ends until we die. And the choices we make are ultimately our own responsibility.”