“To others, the universe seems decent because decent people have welded eyes. That is why they fear lewdness. They are never frightened by the crowing of a rooster or when strolling under a starry heaven. In general, people savor the "pleasures of the flesh" only on the condition that they may be insipid.”

“These studies are the result of my attempt to extract the essence of literature. Literature is either the essential or nothing. I believe that the Evil—an acute form of Evil—which it expresses, has a sovereign value for us. But this concept does not exclude morality: on the contrary, it demands a 'hypermorality.'Literature is communication. Communication requires loyalty. A rigorous morality results from complicity in the knowledge of Evil, which is the basis of intense communication.—Literature and Evil”

“Man always becomes other. Man is the animal who continually differs from himself.”

“TO WHOM LIFE IS AN EXPERIENCE TO BE CARRIED AS FAR AS POSSIBLE... I have not meant to express my thought but to help you clarify what you yourself think... You are not any more different from me than your right leg is from your left, but what joins us is THE SLEEP OF REASON—WHICH PRODUCES MONSTERS.—Theory of Religion”

“I believe that truth has only one face: that of a violent contradiction.”

“Crime is a fact of the human species, a fact of that species alone, but it is above all the secret aspect, impenetrable and hidden. Crime hides, and by far the most terrifying things are those which elude us.”

“Pleasure only starts once the worm has got into the fruit, to become delightful happiness must be tainted with poison.”

“Intellectual despair results in neither weakness nor dreams, but in violence. It is only a matter of knowing how to give vent to one's rage; whether one only wants to wander like madmen around prisons, or whether one wants to overturn them.”

“I don't want your love unless you know I am repulsive, and love me even as you know it.”

“The emotional element which gives an obsessive value to communal existence is death.”

“The fact is, that what de Sade was trying to bring to the surface of the conscious mind was precisely the thing that revolted that mind . . . From the very first he set before the consciousness things which it could not tolerate.”