"Trying to be better than someone else is a pure waste of time. Strive to be better than you were yesterday."

"We Americans of today, together with our allies, are passing through a period of supreme test. It is a test of our courage — of our resolve — of our wisdom — our essential democracy. If we meet that t…"

"In my youth, growing up in a Jewish milieu, there was one thing we did not have to look for and that was exaltation. Every moment is great, we were taught, every moment is unique."

"I see the situation of man in the world of planetary technicity not as an inexitricable and inescapable destiny, but I see the task of thought precisely in this, that within its own limits it helps ma…"

"Science is the most exciting and sustained enterprise of discovery in the history of our species. It is the great adventure of our time. We live today in an era of discovery that far outshadows the di…"