A bad manner spoils everything, even reason and justice; a good one supplies everything, gilds a No, sweetens a truth, and adds a touch of beauty to old age itself.

Better mad with the rest of the world than wise alone.

Know the great men of your age.

Honorable beginnings should serve to awaken curiosity, not to heighten people's expectations. We are much better off when reality surpasses our expectations, and something turns out better than we thought it would.

He that can live alone resembles the brute beast in nothing, the sage in much, and God in everything.

Friendship multiplies the good of life and divides the evil.

No one demands more caution than a spy, and when someone has the skeleton key to minds, counter him by leaving the key of caution inside, on the other side of the keyhole.