The authors who affect contempt for a name in the world put their names to the books which they invite the world to read.

It is not a virtue, but a deceptive copy and imitation of virtue, when we are led to the performance of duty by pleasure as its recompense.

He does not seem to me to be a free man who does not sometimes do nothing.

It is our duty, my young friends, to resist old age.

If a man cannot feel the power of God when he looks upon the stars, then I doubt whether he is capable of any feeling at all.

Let a man practice the profession which he best knows.

If anyone cannot feel the power of God when he looks upon the stars, then I doubt whether he is capable of feeling at all. From the enduring wonder of the heavens flows all grace and power. If anyone thinks it is mindless then he himself must be out of his mind.