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.

Happiness lies neither in vice nor in virtue; but in the manner we appreciate the one and the other, and the choice we make pursuant to our individual organization.

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

There is a kind of pleasure which comes from sacrilege or the profanation of the objects offered us for worship.

I am about to put foward some major ideas; they will be heard and pondered. If not all of them please, surely a few will; in some sort, then, I shall have contributed to the progress of our age, and shall be content.

If the objects who serve us feel ecstacy, they are much more often concerned with themselves than with us, and our own enjoyment is consequently impaired. The idea of seeing another person experience the same pleasure reduces one to a kind of equality which spoils the unutterable charms that come from despotism.

You say that my way of thinking cannot be tolerated? What of it? The man who alters his way of thinking to suit othere is a fool. My way of thinking is the result of my reflections. It is part of my inner being,the way I am made. I do not contradict them, and would not even if I wished to. For my system, which you disapprove of is also my greatest comfort in life, the source of all my happiness -it means more to me than my life itself.