The purpose of science is not to analyze or describe but to make useful models of the world. A model is useful if it allows us to get use out of it.

Do we have the will to make poverty history?

Happiness is for those who don't really need it. So I can live without happiness.

What the joke displays is a switch in perception. This is important in changing the way we think.

There's a danger in the internet and social media. The notion that information is enough, that more and more information is enough, that you don't have to think, you just have to get more information - gets very dangerous.

You can analyse the past, but you have to design the future

Explaining belief has alwayas been difficult. How do you explain a love and a logic at the heart of the universe when the world is so out of whack? Explaining faith is impossible - vision over visibility - instinct over intellect - a songwriter plays a chore with the faith that he will hear the next one in his head.