One might say science is the sum total of our knowledge of the universe, the great library of the known, but the practice of science happens at the border between the known and the unknown. Standing on the shoulders of giants, we peer into the darkness with eyes opened not in fear but in wonder.

Science is too important not to be a part of popular culture.

For me, Woody Allen's 'Manhattan' defines New York. Both New York and Manhattan Island should be in black in white! I always hear the soundtrack of Gershwin in my head every time I go over the Queensboro Bridge, or come in from JFK because of it!

Skepticism must go hand in hand with rationality. When theories are shown to be false, the correct thing to do is to move on.

When we look out into space, we are looking into our own origins, because we are truly children of the stars.

Every carbon atom in every living thing on the planet was produced in the heart of a dying star.

(On the energy radiated by the Sun) It's four hundred million million million million watts. That is a million times the power consumption of the United States every year, radiated in one second, and we worked that out by using some water, a thermometer, a tin, and an umbrella. And that's why I love physics.