Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out.

The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing?

Science is not only a disciple of reason but, also, one of romance and passion.

The universe is governed by science. But science tells us that we can't solve the equations, directly in the abstract.

Science predicts that many different kinds of universe will be spontaneously created out of nothing. It is a matter of chance which we are in.

Philosophers have not kept up with modern developments in science. Particularly physics.

The media need superheroes in science just as in every sphere of life, but there is really a continuous range of abilities with no clear dividing line.

I used to think information was destroyed in black hole. This was my biggest blunder, or at least my biggest blunder in science.

People won't have time for you if you are always angry or complaining.

If we do discover a complete theory, it should be in time understandable in broad principle by everyone. Then we shall all, philosophers, scientists, and just ordinary people be able to take part in the discussion of why we and the universe exist.