The pleasure I gave my lovers was a four fifth of the pleasure I experienced.

Love is only a feeling of curiousity more or less intense, grafted upon the inclination placed in us by nature that the species may be preserved.

For my future I have no concern, and as a true philosopher, I never would have any, for I know not what it may be: as a Christian, on the other hand, faith must believe without discussion, and the stronger it is, the more it keeps silent.

I have felt in my very blood, ever since I was born, a most unconquerable hatred towards the whole tribe of fools, and it arises from the fact that I feel myself a blockhead whenever I am in their company.

I leave to others the decision as to the good or evil tendencies of my character, but such as it is it shines upon my countenance, and there it can easily be detected by any physiognomist.

The mind of a human being is formed only of comparisons made in order to examine analogies, and therefore cannot precede the existence of memory.

We avenge intellect when we dupe a fool, and it is a victory not to be despised for a fool is covered with steel and it is often very hard to find his vulnerable part.