Beauty is such a fleeting blossom, how can wisdom rely upon its momentary delight?

A good conscience fears no witness, but a guilty conscience is solicitous even in solitude. If we do nothing but what is honest, let all the world know it. But if otherwise, what does it signify to have nobody else know it, so long as I know it myself? Miserable is he who slights that witness.

There is nothing wrong with changing a plan when the situation has changed.

Anger, if not restrained, is frequently more hurtful to us than the injury that provokes it.

No one can wear a mask for very long.

A physician is not angry at the intemperance of a mad patient, nor does he take it ill to be railed at by a man in fever. Just so should a wise man treat all mankind, as a physician does his patient, and look upon them only as sick and extravagant.

A great, a good, and a right mind is a kind of divinity lodged in flesh, and may be the blessing of a slave as well as of a prince: it came from heaven, and to heaven it must return; and it is a kind of heavenly felicity, which a pure and virtuous mind enjoys, in some degree, even upon earth.