It is the duty of the followers of Islam to spread through the civilised world, a knowledge of what Islam means - its spirit and message.
That is the true definition of sin; when knowing right you do the lower, ah, then you sin. Where there is no knowledge, sin is not present.
I would rather excel in the knowledge of what is excellent, than in the extent of my power and possessions.
I know it's a rare privilege, but if one can really tackle something in adult life that means that much to you, then it's more rewarding than anything I can imagine.
Despite fearful rhetoric to the contrary, terrorism is not a transcendent threat. A terrorist attack cannot possibly destroy our country's way of life; it's only our reaction to that attack that can do that kind of damage.
Quantum mechanics brought an unexpected fuzziness into physics because of quantum uncertainty, the Heisenberg uncertainty principle.
The PhD system is the real root of the evil of academic snobbery. People who have PhDs consider themselves a priesthood, and inventors generally don't have PhDs.
The public knows that human beings are fallible. Only people blinded by ideology fall into the trap of believing in their own infallibility.
The idea that global warming is the most important problem facing the world is total nonsense and is doing a lot of harm.
It is our task, both in science and in society at large, to prove the conventional wisdom wrong and to make our unpredictable dreams come true
A good scientist is a person with original ideas. A good engineer is a person who makes a design that works with as few original ideas as possible.
Thus, in a sense, mathematics has been most advanced by those who distinguished themselves by intuition rather than by rigorous proofs.
The Black Panther Party was not a gang. They grew out of a young black intelligentsia on college campuses.
I think I can capture the taste buds of the average right-wing conservative who loves barbecue.
Lots of people think I went to prison. I never went to prison. I was in jail without bail.
Pure mathematics is on the whole distinctly more useful than applied. For what is useful above all is technique, and mathematical technique is taught mainly through pure mathematics.
Mathematics is the cheapest science. Unlike physics or chemistry, it does not require any expensive equipment. All one needs for mathematics is a pencil and paper.
The objective of nuclear-weapons policy should not be solely to decrease the number of weapons in the world, but to make the world safer - which is not necessarily the same thing.
Many people believe that the current system must inevitably end in total annihilation. They reject, sometimes very emotionally, any attempts to analyze this notion.
I had changed from being a mathematician to a practicing scientist. I was increasingly embarassed that I could no longer follow some of the more modern branches of pure mathematics.
On my return to Pittsburgh, I resolved to go back to the fundamental problems of electronic structure that I had contemplated abstractly many years earlier.