Go out as far as you can go and start from there

Do not grow old, no matter how long you live.

There's no question dolphins are smarter than humans as they play more.

I believe that pipe smoking contributes to a somewhat calm and objective judgement in all human affairs.

The stakes are immense, the task colossal, the time is short. But we may hope - we must hope - that man's own creation, man's own genius, will not destroy him.

The pursuit of truth and beauty is a sphere of activity in which we are permitted to remain children all our lives.

I wouldn't want to live if I did not have my work. In any case, it's good that I'm already old and personally don't have to count on a prolonged future.