No one wearies of benefits received.

The most complete revenge is not to imitate the aggressor.

A man does not sin by commission only, but often by omission.

Perfection of character is this: to live each day as if it were your last, without frenzy, without apathy, without pretence.

From my grandfather's father, I learned to dispense with attendance at public schools, and to enjoy good teachers at home, and to recognize that on such things money should be eagerly spent.

Or is it your reputation that's bothering you? But look at how soon we're all forgotten. The abyss of endless time that swallows it all. The emptiness of those applauding hands. The people who praise us; how capricious they are, how arbitrary. And the tiny region it takes place. The whole earth a point in space - and most of it uninhabited.

If any man can convince me and bring home to me that I do not think or act aright, gladly will I change; for I search after truth, by which man never yet was harmed. But he is harmed who abideth on still in his deception and ignorance.