Being evil is something that only humans are capable of.

At some point, my body will collapse. But I hope that my brain will still be working so that I can carry on with writing.

I've always felt you don't have to be completely detached, emotionally uninvolved to make precise observations. There's nothing wrong with feeling great empathy for your subjects.

I sometimes wonder how some people can live with themselves in some of the big companies today. So many far-reaching decisions are based on how they will affect the next shareholders' meeting.

To me, trees are living beings and they have their own sort of personalities.

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

We have language and they do not. Chimps communicate by embracing, patting, looking - all these things. And they have lots of sounds. But they cannot sit and discuss. They cannot teach about things that are not present, as far as we know.