Sex should be a perfect balance of pain and pleasure. Without that symmetry, sex becomes a routine rather than an indulgence.

Man's natural character is to imitate; that of the sensitive man is to resemble as closely as possible the person whom he loves. It is only by imitating the vices of others that I have earned my misfortunes.

Do not breed. Nothing gives less pleasure than childbearing. Pregnancies are damaging to health, spoil the figure, wither the charms, and it's the cloud of uncertainty forever hanging over these events that darkens a husband's mood.

Consider the problem from the point of view of evil, evil being almost always pleasure's true and major charm; considered thus, the crime must appear greater when perpetrated upon a being of your identical sort than when inflicted upon one which is not, and this once established, the delight automatically doubles.

Anything beyond the limits and grasp of the human mind is either illusion or futility; and because your god having to be one or the other of the two, in the first instance I should be mad to believe in him, and in the second a fool.

I've been to Hell. You've only read about it.

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.