What humans do over the next 50 years will determine the fate of all life on the planet.

I think we're lucky to be living when we are, because things are going to get worse.

The most extraordinary thing about trying to piece together the missing links in the evolutionary story is that when you do find a missing link and put it in the story, you suddenly need all these other missing links to connect to the new discovery. The gaps and questions actually increase - it's extraordinary.

I believe the Abominable Snowman may be real. I think there may be something in that.

People must feel that the natural world is important and valuable and beautiful and wonderful and an amazement and a pleasure.

Television of course actually started in Britain in 1936, and it was a monopoly, and there was only one broadcaster and it operated on a license which is not the same as a government grant.

I suspect that happiness is not a state but rather a transition.