Truth is different from error in two respects: it is a little harder to prove and more difficult to admit.

What are we doing down here? We prepare the blossoms of tomorrow. We all manure future humanity.

God is the mysterious veil under which we hide our ignorance of the cause.

Civilization is the art of creating useless needs.

The altruism of foresters can serve as a motto for humanity in general: "We reap what we have not sown. We sow what we do not reap."

The paradox is the seed of truth. This germ just needs a fertile ground to flourish and bear fruit.

Truth is on a curve whose asymptote our spirit follows eternally.