In order to know virtue, we must first acquaint ourselves with vice.

Vice stirs up war, virtue fights.

Happiness lies neither in vice nor in virtue; but in the manner we appreciate the one and the other, and the choice we make pursuant to our individual organization.

Ah, Eugénie, have done with virtues! Among the sacrifices that can be made to those counterfeit divinities, is there one worth an instant of the pleasures one tastes in outraging them?

Vice stirs up war, virtue fights.

True felicity lies only in the senses, and virtue gratifies none of them.