When you see something that is technically sweet you go ahead and do it.

Maybe General Groves was right. Maybe we should just banish thinking forever.

All history teaches us that these questions that we think the pressing ones will be transmuted before they are answered, that they will be replaced by others, and that the very process of discovery will shatter the concepts that we today use to describe our puzzlement.

Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search.

There is something irreversible about acquiring knowledge; and the simulation of the search for it differs in a most profound way from the reality.

Today, it is not only that our kings do not know mathematics, but our philosophers do not know mathematics and - to go a step further - our mathematicians do not know mathematics.

In a free world, if it is to remain free, we must maintain, with our lives if need be, but surely by our lives, the opportunity for a man to learn anything