You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat.

You cannot simultaneously prevent and prepare for war.

Every day, man is making bigger and better foolproof things, and every day, Nature is making bigger and better fools. So far, I think Nature is winning.

Yes, we have to divide up our time like that, between our politics and our equations. But to me our equations are far more important, for politics are only a m…

The fact that we have not yet found the slightest evidence for life - much less intelligence - beyond this Earth does not surprise or disappoint me in the leas…

Differential equations won't help you much in the design of aeroplanes - not yet, anyhow.

I've said many times that you can't stop science.... God made man in his own image. God intended for man to become one with God. We are going to become one wit…