You can't do everything. You can't do health and forestry and agriculture. You've got to focus and do one or the other.

Some people say, therefore, that violence and war are inevitable. I say rubbish: Our brains are fully capable of controlling instinctive behavior.

there have been too many events in my life, and in the lives of my friends, which have defied any kind of scientific explanation. Science does not have appropriate tools for the dissection of the spirit.

Women tend to be more intuitive, or to admit to being intuitive, and maybe the hard science approach isn't so attractive. The way that science is taught is very cold. I would never have become a scientist if I had been taught like that.

I still think we are smart enough to not destroy planet Earth, our only home.

Every stage of my life set the scene for the next, and at each point all I had to do was say "yes" and not think too much about the consequences.

I like some animals more than some people, some people more than some animals.