The World is full of wonders, but they become more Wonderful, not less Wonderful when Science looks at them.

I just wish the world was twice as big and half of it was still unexplored.

It's like saying that two and two equals four, but if you wish to believe it, it could also be five ... Evolution is not a theory; it is a fact, every bit as much as the historical fact that William the Conqueror landed in 1066.

An understanding of the natural world and what's in it is a source of not only a great curiosity but great fulfillment...

It's a moral question about whether we have the right to exterminate species.

Children start off reading in books about lions and giraffes and so on, but they also-if theyre lucky enough and have reasonable privileges of any human being-are able to go into a garden and turn over stone and see a worm and see a slug and see an ant.

Fundamentally not to waste energy. If we were all to reduce our demands for energy, it would make an enormous amount of difference.