It is never right to do wrong or to requite wrong with wrong, or when we suffer evil to defend ourselves by doing evil in return.

Think not those faithful who praise all thy words and actions, but those who kindly reprove thy faults.

True knowledge exists in knowing that you know nothing.

How can you wonder your travels do you no good, when you carry yourself around with you?

...one thing I am ready to fight for as long as I can, in word and act: that is, that we shall be better, braver and more active men if we believe it right to look for what we don't know than if we believe there is no point in looking because what we don't know we can never discover.

One ought not to return injustice, nor do evil to anybody in the world, no matter what one may have suffered from them.

Young people nowadays love luxury; they have bad manners and contempt for authority. They show disrespect for old people... contradict their parents, talk constantly in front of company, gobble their food and tyrannize their teachers.