At their best, at their most creative, science and engineering are attributes of liberty-noble expressions of man's God-given right to investigate and explore the universe without fear of social or political or religious reprisals.

I ... began my career as a wireless amateur. After 43 years in radio, I do not mind confessing that I am still an amateur. Despite many great achievements in the science of radio and electronics, what we know today is far less than what we have still to learn.

An inventor is someone who makes another man rich.

I hitched my wagon to an electron rather than the proverbial star.

Atoms for peace. Man is still the greatest miracle and the greatest problem on earth.

Freedom is the oxygen without which science cannot breathe.

The thrill, believe me, is as much in the battle as in the victory.