An insect is more complex than a star..and is a far greater challenge to understand.

In future, children won't perceive the stars as mere twinkling points of light: they'll learn that each is a 'Sun', orbited by planets fully as interesting as those in our Solar system.

Absence of evidence is not evidence of absence.

It will not be humans who watch the sun's demise, six billion years from now. Any creatures that then exist will be as different from us as we are from bacteria or amoebae.

I think a few hundred years from now we'll start having the 'posthuman' era of different species.

It's better to read first rate science fiction than second rate science-it's a lot more fun, and no more likely to be wrong.

We need to broaden our sympathies both in space and time - and perceive ourselves as part of a long heritage, and stewards for an immense future.

Science is a part of culture. Indeed, it is the only truly global culture because protons and proteins are the same all over the world, and it's the one culture we can all share.

I hope that by 2050 the entire solar system will have been explored and mapped by flotillas of tiny robotic craft.

I'm not myself religious but have no wish to insult or denigrate those who are.

Crucial to science education is hands-on involvement: showing, not just telling; real experiments and field trips and not just "virtual reality".

The sword of destiny has two edges. You are one of them.

They're mutually incompatible I feel; being a wise thief and a wise father.

It was great to work in Ireland because it's such a beautiful country, but it's not particularly easy to film in because the weather changes all the time.

In the history of the nation, there has never been a political party so ridiculous as today's Democrats. It's as if all the brain-damaged people in America got together and formed a voting bloc.

Between killing and dying there's a third way: live

When the soul communes with itself the lip is silent.

When money is once parted with, it can never return.

When Nirvana hit it big, it was overwhelming because we were part of the counterculture. Nirvana didn't go to the mainstream - the mainstream came to Nirvana.

That really hurt me- I tried to help those children but people just wanted to make fun of me.It was cruel and unnecessary.

They want to deceive their people first because now they are in a very shabby situation