Self-education is, I firmly believe, the only kind of education there is.

I do not fear computers. I fear the lack of them.

People who think they know everything are a great annoyance to those of us who do.

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'

Humanity has the stars in its future, and that future is too important to be lost under the burden of juvenile folly and ignorant superstition.