Intelligence flourishes only in the ages when belief withers.

We dread the future only when we are not sure we can kill ourselves when we want to.

Basis of society: anonymous sweat.

Philosophers write for professors; thinkers for writers.

All that shimmers on the surface of the world, all that we call interesting, is the fruit of ignorance and inebriation.

What I know at sixty, I knew as well at twenty. Forty years of a long, superfluous, labor of verification.

Do I look like someone who has something to do here on earth?' —That's what I'd like to answer the busybodies who inquire into my activities.