When the going gets tough, the tough take a coffee break.

Intelligence is the ability to adapt to change.

Some people would claim that things like love, joy and beauty belong to a different category from science and can't be described in scientific terms, but I think they can now be explained by the theory of evolution.

I don't know what my IQ is. People who gloat about their IQ's are losers

Before we understand science, it is natural to believe that God created the universe. But now science offers a more convincing explanation.

What I have learned from life is to make the most of what you have got.

Any physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove it.