Any fool can know. The point is to understand.

I cannot conceive of a God who rewards and punishes his creatures, or has a will of the type of which we are conscious in ourselves. An individual who should survive his physical death is also beyond my comprehension, nor do I wish it otherwise; such notions are for the fears or absurd egoism of feeble souls.

I'm more interested in the future than in the past, because the future is where I intend to live.

Be a loner. That gives you time to wonder.

The road to perdition has ever been accompanied by lip service to an ideal.

War seems to me to be a mean, contemptible thing: I would rather be hacked in pieces than take part in such an abominable business. And yet so high, in spite of everything, is my opinion of the human race that I believe this bogey would have disappeared long ago, had the sound sense of the nations not been systematically corrupted by commercial and political interests acting through the schools and the Press

It is just as important to make knowledge live and keep it alive as to solve specific problems.