The planet's survival has become so uncertain that any effort, any thought that presupposes an assured future amounts to a mad gamble.

It is important what a man still plans at the end. It shows the measure of injustice in his death.

Most religions do not make men better, only warier.

Someone who always has to lie discovers that every one of his lies is true

It is important to say all the great thoughts again, without knowing that they have already been said.

His head is made of stars, but not yet arranged into constellations.

I cannot become modest; too many things burn in me; the old solutions are falling apart; nothing has been done yet with the new ones. So I begin, everywhere at once, as if I had a century ahead of me.