The primary and most beautiful of Nature's qualities is motion, which agitates her at all times, but this motion is simply a perpetual consequence of crimes, she conserves it by means of crimes only.
Marquis de SadeCrime is to the passions what nervous fluid is to life: it sustains them, it supplies their strength.
Marquis de SadeI don't know what the heart is, not I: I only use the word to denote the mind's frailties.
Marquis de Sade