No man sympathizes with the sorrows of vanity.

No mind is much employed upon the present; recollection and anticipation fill up almost all our moments.

I deny the lawfulness of telling a lie to a sick man for fear of alarming him; you have no business with consequences, you are to tell the truth.

Men are like stone jugs - you may lug them where you like by the ears.

The feeling of friendship is like that of being comfortably filled with roast beef; love, like being enlivened with champagne.

Human reason borrowed many arts from the instinct of animals.

Human experience, which is constantly contradicting theory, is the great test of truth. A system, built upon the discoveries of a great many minds, is always of more strength, than what is produced by the mere workings of any one mind, which, of itself, can do very little. There is not so poor a book in the world that would not be a prodigious effort were it wrought out entirely by a single mind, without the aid of prior investigators.