Science is of value because it can produce something.

It is the fact that the electrons cannot all get on top of each other that makes tables and everything else solid.

Maybe that is why young people make success. They don't know enough.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.

There are thousands of years in the past, and there is an unknown amount of time in the future. There are all kinds of opportunities, and there are all kinds of dangers.

The "paradox" is only a conflict between reality and your feeling of what reality "ought to be."

We scientists are clever — too clever — are you not satisfied? Is four square miles in one bomb not enough? Men are still thinking. Just tell us how big you want it!