There is no outward sign of true courtesy that does not rest on a deep moral foundation.

A vain man can never be utterly ruthless: he wants to win applause and therefore he accommodates himself to others

To think is easy. To act is hard. But the hardest thing in the world is to act in accordance with your thinking.

Of all thieves, fools are the worst; they rob you of time and temper.

The safest thing is always to try to convert everything that is in us and around us into action; let the others talk and argue about it as they please.

Make the most of time, it flies away so fast; yet method will teach you to win time.

Art rests on a kind of religious sense, on a deep, steadfast earnestness; and on this account it unites so readily with religion.