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.

The man who alters his way of thinking to suit others is a fool.

Chimerical and empty being, your name alone has caused more blood to flow on the face of the earth than any political war ever will. Return to the nothingness from which the mad hope and ridiculous fright of men dared call you forth to their misfortune. You only appeared as a torment for the human race. What crimes would have been spared the world, if they had choked the first imbecile who thought of speaking of you.

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 horror of wedlock, the most appalling, the most loathsome of all the bonds humankind has devised for its own discomfort and degradation.

Behold, my love, behold all that I simultaneously do: scandal, seduction, bad example, incest, adultery, sodomy! Oh, Satan! one and unique God of my soul, inspire thou in me something yet more, present further perversions to my smoking heart, and then shalt thou see how I shall plunge myself into them all!

The ultimate triumph of philosophy would be to cast light upon the mysterious ways in which Providence moves to achieve the designs it has for man.