True happiness for human beings is possible only to those who develop their godlike potentialities to the utmost.

The universe may have a purpose, but nothing we know suggests that, if so, this purpose has any similarity to ours.

I do not myself feel that any person who is really profoundly humane can believe in everlasting punishment.

One must care about a world one will not see.

Be scrupulously truthful, even if the truth is inconvenient, for it is more inconvenient when you try to conceal it.

All serious innovation is only rendered possible by some accident enabling unpopular persons to survive.

Orthodoxy is the grave of intelligence, no matter what orthodoxy it may be.