Getting to places like Bangkok or Singapore was a hell of a sweat. But when you got there it was the back of beyond. It was just a series of small tin sheds.

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.

If my grandchildren were to look at me and say, 'You were aware species were disappearing and you did nothing, you said nothing', that I think is culpable. I don't know how much more they expect me to be doing, I'd better ask them.

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

The human population can no longer be allowed to grow in the same old uncontrollable way. If we do not take charge of our population size, then nature will do it for us and it is the poor people of the world who will suffer most

Instead of controlling the environment for the benefit of the population, perhaps we should control the population to ensure the survival of our environment

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.