Poets say science takes away from the beauty of the stars - mere globs of gas atoms. I, too, can see the stars on a desert night, and feel them. But do I see less or more?

It is in the admission of ignorance and the admission of uncertainty that there is a hope for the continuous motion of human beings in some direction that doesn't get confined, permanently blocked, as it has so many times before in various periods in the history of man.

Scientific knowledge is an enabling power to do either good or bad — but it does not carry instructions on how to use it.

If a guy tells me the probability of failure is 1 in 100,000, I know he's full of crap.

An ordinary fool isn't a faker; an honest fool is all right. But a dishonest fool is terrible!

Doubt is clearly a value in science. It is important to doubt and that the doubt is not a fearful thing, but a thing of great value.

A philosopher once said, 'It is necessary for the very existence of science that the same conditions always produce the same results.' Well, they don't!