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That knowledge which is popular is not scientific.

There are in fact two things, science and opinion; the former begets knowledge, the later ignorance.

But that the reasoning from these facts, the drawing from them correct conclusions, is a matter of great difficulty, may be inferred from the imperfect state in which the Science is now found after it has been so long and so intensely studied.

Intellectual curiosity drove Einstein to some of the world's most important discoveries.

During this time I had the singular good fortune of being able to discuss the problem constantly with Einstein. Some experiments done at Einstein's suggestion yielded no decisively new result.

Scientific discovery and scientific knowledge have been achieved only by those who have gone in pursuit of it without any practical purpose whatsoever in view.

I think the reason people are dealing with science less well now than 50 years ago is that it has become so complicated.

Knowledge in the Internet Age - networked knowledge - is becoming more like what knowledge has been in the past few hundreds years for scientists: it's provisional; it's a hypothesis that is waiting to be disproved.