You see ... a man like me, a cautious man, has his life all figured out according to a pattern, and then the pattern flies apart. You run around for quite a while trying to repair it, until one day you straighten up again with an armful of broken pieces, and you see that the world has gone on without you and you can never catch up with your old life, and you must begin all over again.

In this very breath that we take now lies the secret that all great teachers try to tell us.

It's a simplification to say that the men [during Stone Age] went to war to maintain their dominance over the women. The men would help dig agricultural ditches because they were superb farmers. That was very heavy lifting work. But then they just preened themselves, and put bird-of-paradise plumes [in their hair], and smoked dope.

There's an elegiac quality in watching [American wilderness] go, because it's our own myth, the American frontier, that's deteriorating before our eyes. I feel a deep sorrow that my kids will never get to see what I've seen, and their kids will see nothing; there's a deep sadness whenever I look at nature now.

The concept of conservation is a far truer sign of civilization than that spoilation of a continent which we once confused with progress.

It is said in Java that the tiger's hearing is so acute that hunters must keep their nose hairs cut lest the tiger hear the breath whistle through their nostrils.

I can watch elephants (and elephants alone) for hours at a time, for sooner or later the elephant will do something very strange... There is mystery behind that masked gray visage, and ancient life force, delicate and mighty, awesome and enchanted, commanding the silence ordinarily reserved for mountain peaks, great fires, and the sea.