Jacques Yves Cousteau

Probably more harm has been done to the Earth in the 20th century than in all previous history of humanity.

If we didn't die, we wouldn't appreciate life as we do.

From birth, man carries the weight of gravity on his shoulders. He is bolted to the Earth. But all he has to do is sink beneath the surface and he is free.

Throughout most of history, man has had to struggle against nature to survive; in this century, he begins to realize that, to survive, he must protect it.