I have no doubt that the fundamental problem the planet faces is the enormous increase in the human population

One in eight plant species face extinction.

The fact is that no species has ever had such wholesale control over everything on earth, living or dead, as we now have. That lays upon us, whether we like it or not, an awesome responsibility. In our hands now lies not only our own future, but that of all other living creatures with whom we share the earth.

You'll find people where their conditions aren't changing in any way, its rather rare for them to be happy.

I don't like rats, but there's not much else I don't like. The problem with rats is they have no fear of human beings, they're loaded with foul diseases, they would run the place given half the chance, and I've had them leap out of a lavatory while I've been sitting on it.

It is vital that there is a narrator figure whom people believe. That's why I never do commercials. If I started saying that margarine was the same as motherhood, people would think I was a liar.

Many individuals are doing what they can. But real success can only come if there is a change in our societies and in our economics and in our politics.