If we were logical, the future would be bleak indeed. But we are more than logical. We are human beings, and we have faith, and we have hope.
We must plant the sea and herd its animals using the sea as farmers instead of hunters. That is what civilization is all about - farming replacing hunting.
The road to the future leads us smack into the wall. We simply ricochet off the alternatives that destiny offers. Our survival is no more than a question of 25, 50 or perhaps 100 years.
If we go on the way we have, the fault is our greed [and] if we are not willing [to change], we will disappear from the face of the globe, to be replaced by the insect.
From birth, man carries the weight of gravity on his shoulders. He is bolted to earth. But man has only to sink beneath the surface and he is free.
What is a scientist after all? It is a curious man looking through a keyhole, the keyhole of nature, trying to know what's going on.
The happiness of the bee and the dolphin is to exist. For man it is to know that and to wonder at it