The mirror sees the man as beautiful, the mirror loves the man; another mirror sees the man as frightful and hates him; and it is always the same being who produces the impressions.

Crime is to the passions what nervous fluid is to life: it sustains them, it supplies their strength.

My manner of thinking, so you say, cannot be approved. Do you suppose I care? A poor fool indeed is he who adopts a manner of thinking for others!

The debility to which Nature condemned women incontestably proves that her design is for man, who then more than ever enjoys his strength, to exercise it in all the violent forms that suit him best, by means of tortures, if he be so inclined, or worse.

Miserable creatures, thrown for a moment on the surface of this little pile of mud, is it decreed that one half of the flock should be the persecutor of the other? Is it for you, mankind, to pronounce on what is good and what is evil?

Prejudice is the sole author of infamies: how many acts are so qualified by an opinion forged out of naught but prejudice!

In libertinage, nothing is frightful, because everything libertinage suggests is also a natural inspiration; the most extraordinary, the most bizarre acts, those which most arrantly seem to conflict with every law, every human institution... even those that are not frightful, and there is not one amongst them all that cannot be demonstrated within the boundaries of nature.