In order to stabilize world population, we must eliminate 350,000 per day.

The best way to observe a fish is to become a fish.

May this continent, the last explored by humankind, be the first one to be spared by humankind.

Mankind has probably done more damage to the Earth in the 20th century than in all of previous human history.

It is certain that the study of human psychology, if it were undertaken exclusively in prisons, would also lead to misrepresentation and absurd generalizations.

I said that the oceans were sick but they're not going to die. There is no death possible in the oceans - there will always be life - but they're getting sicker every year.

All life is part of a complex relationship in which each is dependent upon the others, taking from, giving to and living with all the rest.