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

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

Its about cherishing the woodland at the bottom of your garden or the stream that runs through it. It affects every aspect of life.

I think a major element of jetlag is psychological. Nobody ever tells me what time it is at home.

One in eight plant species face extinction.

I suppose happiness is something one enjoys, but I suspect that happiness is not a state but rather a transition.

You can only get really unpopular decisions through if the electorate is convinced of the value of the environment. That's what natural history programmes should be for.