If we want to go to space with humans, that's for fun not for science. Human adventures in space are just sporting events.

For me too, the periodic table was a passion. ... As a boy, I stood in front of the display for hours, thinking how wonderful it was that each of those metal foils and jars of gas had its own distinct personality.

The public knows that human beings are fallible. Only people blinded by ideology fall into the trap of believing in their own infallibility.

As finite creatures who think and feel, we can create islands of meaning in the sea of information.

For a physicist mathematics is not just a tool by means of which phenomena can be calculated, it is the main source of concepts and principles by means of which new theories can be created.

Some of my friends like to keep science and religion together, but I certainly like to keep them separate.

The biologists have essentially been pushed aside. Al Gore's just an opportunist. The person who is really responsible for this overestimate of global warming is Jim Hansen. He consistently exaggerates all the dangers.