I am provoked at the contempt which most historians show for humanity in general; one would think by them, that the whole human species consisted but of about a hundred and fifty people, called and dignified (commonly very undeservedly too) by the titles of Emperors, Kings, Popes, Generals, and Ministers.

It seems to me that your doctor [Tronchin] is more of a philosopher than a physician. As for me, I much prefer a doctor who is anoptimist and who gives me remedies that will improve my health. Philosophical consolations are, after all, useless against real ailments. I know only two kinds of sickness--physical and moral: all the others are purely in the imagination.

Our conjectures pass upon us for truths; we will know what we do not know, and often, what we cannot know: so mortifying to our pride is the base suspicion of ignorance.

I really know nothing more criminal, more mean, and more ridiculous than lying. It is the production either of malice, cowardice, or vanity; and generally misses of its aim in every one of these views; for lies are always detected, sooner or later.

Knowledge of the world in only to be acquired in the world, and not in a closet.

If a man, notoriously and designedly, insults and affronts you, knock him down; but if he only injures you, your best revenge is to be extremely civil to him in your outward behaviour, though at the same time you counterwork him, and return him the compliment, perhaps with interest.

Whoever plays deep must necessarily lose his money or his character.