"Cameramen are among the most extraordinarily able and competent people I know. They have to have an insight into natural history that gives them a sixth sense of what the creature is going to do, so they can be ready to follow."

"The whole of science, and one is tempted to think the whole of the life of any thinking man, is trying to come to terms with the relationship between yourself and the natural world. Why are you here, and how do you fit in, and what's it all about."

"Before the BBC, I joined the Navy in order to travel."

"There is no question that climate change is happening the only arguable point is what part humans are playing in it."

"I never sort of thought of myself as a comedy writer, by nature."

"All the perplexities, confusion and distress in America arise, not from defects in their Constitution or Confederation, not from want of honor or virtue, so much as from the downright ignorance of the nature of coin, credit and circulation."

"You must not lose faith in humanity. Humanity is an ocean; if a few drops of the ocean are dirty, the ocean does not become dirty."

"Except during the nine months before he draws his first breath, no man manages his affairs as well as a tree does."