I'm always pushing for human responsibility. Given...

Words can be said in bitterness and anger, and often there seems to be an element of truth in the nastiness. And words don't go away, they just echo around.

Change happens by listening and then starting a dialogue with the people who are doing something you don't believe is right.

I thought my life was mapped out. Research, living in the forest, teaching and writing. But in '86 I went to a conference and realised the chimpanzees were disappearing. I had worldwide recognition and a gift of communication. I had to use them.

He has a profound respect for old age. Especially when it's bottled.

There was no respect for youth when I was young, and now that I am old, there is no respect for age, I missed it coming and going.

I've an enormous respect for my mother who at the age of 39 raised three children, and I grew up with my grandmother in the household. And so it was a really strong household of women - my poor brother! It was great growing up with so many generations of women.

The older generation had greater respect for land than science. But we live in an age when science, more than soil, has become the provider of growth and abundance. Living just on the land creates loneliness in an age of globality.