We owe a lot to the Indians, who taught us how to count, without which no worthwhile scientific discovery could have been made.

A man's moral worth is not measured by what his religious beliefs are but rather by what emotional impulses he has received from Nature during his lifetime.

No worthy problem is ever solved within the plane of its original conception.

I never said half the crap people said I did.

Well-being and happiness never appeared to me as an absolute aim. I am even inclined to compare such moral aims to the ambitions of a pig.

It's no accident that capitalism has brought with it progress, not merely in production but also in knowledge. Egoism and competition are, alas, stronger forces than public spirit and sense of duty.

The truth isn't always a blinding light. Sometimes it's a deep and dazzling darkness, that illuminates - and burns - just as surely.