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.

The reasoning man who scorns the prejudices of simpletons necessarily becomes the enemy of simpletons; he must expect as much, and laugh at the inevitable.

Every principle is a judgment, every judgment the outcome of experience, and experience is only acquired by the exercise of the senses; whence it follows that religious principles bear upon nothing whatever and are not in the slightest innate. Ignorance and fear, you will repeat to them, ignorance and fear - those are the twin bases of every religion.

Virtue can procure only an imaginary happiness; true felicity lies only in the senses, and virtue gratifies none of them.

One weeps not save when one is afraid, and that is why kings are tyrants.

Your body is the church where Nature asks to be reverenced.

All universal moral principles are idle fancies.