We can't leave people in abject poverty, so we need to raise the standard of living for 80% of the world's people, while bringing it down considerably for the 20% who are destroying our natural resources.

In a very unscientific statement, I feel that there's been a disconnect between this clever brain and the heart.

I learnt from Flo how to be mother. Flo was patient, tolerant. She was supportive. She was always there. She was playful. She enjoyed having her babies, as good mothers do.

What makes us human, I think, is an ability to ask questions, a consequence of our sophisticated spoken language.

If only we can overcome cruelty, to human and animal, with love and compassion we shall stand at the threshold of a new era in human moral and spiritual evolution - and realize, at last, our most unique quality: humanity.

There would be very little point in my exhausting myself and other conservationists themselves in trying to protect animals and habitats if we weren't at the same time raising young people to be better stewards.

The least I can do is speak out for those who cannot speak for themselves.