Experimental evidence is the final arbiter of right and wrong.

Physics grapples with the largest questions the universe presents. Where did the totality of reality come from? Did time have a beginning?

Evidence in support of general relativity came quickly. Astronomers had long known that Mercury’s orbital motion around the sun deviated slightly from what Newton’s mathematics predicted. In 1915, Einstein used his new equations to recalculate Mercury’s trajectory and was able to explain the discrepancy, a realization he later described to his colleague Adrian Fokker as so thrilling that for some hours it gave him heart palpitations.

Art makes us human, music makes us human, and I deeply feel that science makes us human.

I may be a Jewish scientist, but I would be tickled silly if one day I were reincarnated as a Baptist preacher.

Understanding requires insight. Insight must be anchored.

The main challenge that television presents is that I have a tendency to say things with a great deal of precision and accuracy. Often a description of that sort, which will work in a book because people can read it slowly - they can turn the pages back and so on - doesn't really work on TV because it interrupts the flow of the moving image.