Every one should be his own physician. We ought to assist, and not to force nature. Eat with moderation...Nothing is good for the body but what we can digest. What medicine can procure digestion? Exercise. What will recruit strength? Sleep.

Sensual pleasure passes and vanishes, but the friendship between us, the mutual confidence, the delight of the heart, the enchantment of the soul, these things do not perish and can never be destroyed.

When a man is in love, jealous, and just whipped by the Inquisition, he is no longer himself.

To succeed in chaining the multitude, you must seem to wear the same fetters.

If this is the best of possible worlds, what then are the others?

It is one of the superstitions of the human mind to have imagined that virginity could be a virtue.

When he who hears does not know what he who speaks means, and when he who speaks does not know what he himself means, that is philosophy.