If not for me, the H-bomb would have been developed in Russia first. In the U.S., we'd now be speaking Russian.

If anyone wants a hole in the ground, nuclear explosives can make big holes

When you're certain you cannot be fooled, you become easy to fool.

When Columbus took off, the purpose was to improve trade relations with China. That problem has not been solved to this very day, but just look at the by-products.

Really exotic methods of propulsion . . . will have to be devised to get there. How it will be done, I do not know. Whether it will be done, I am not quite certain. But I would bet it can be done.

The science of today is the technology of tomorrow.

I think that intellectuals who end up in hell will have to read page proofs and check indexes there.