Nothing is so conformable to reason as to disavow reason.

Thinking too little about things or thinking too much both make us obstinate and fanatical.

All men's miseries derive from not being able to sit in a quiet room alone.

The married should not forget that to speak of love begets love.

Look somewhere else for someone who can follow you in your researches about numbers. For my part, I confess that they are far beyond me, and I am competent only to admire them.

I condemn equally those who choose to praise man, those who choose to condemn him and those who choose to divert themselves, and I can only approve of those who seek with groans.

One must know oneself. If this does not serve to discover truth, it at least serves as a rule of life and there is nothing better.