I know that I have lived because I have felt, and, feeling giving me the knowledge of my existence.

I am bound to add that the excess in too little has ever proved in me more dangerous than the excess in too much; the last may cause indigestion, but the first causes death.

I have had friends who have acted kindly towards me, and it has been my good fortune to have it in my power to give them substantial proofs of my gratitude.

If I had married a woman intelligent enough to guide me, to rule me without my feeling that I was ruled, I should have taken good care of my money, I should have had children, and I should not be, as now I am, alone in the world and possessing nothing.

Cheating is a sin, but honest cunning is simply prudence. It is a virtue. To be sure, it has a likeness to roguery, but that cannot be helped. He who has not learned to practice it is a fool.

Be the flame, not the moth.

I have lived as a philosopher and die as a Christian.