Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.

It is not half so important to know as to feel.

The 'control of nature' is a phrase conceived in arrogance, born of the Neanderthal age of biology and philosophy, when it was supposed that nature exists for the convenience of man.

There is one quality that characterizes all of us who deal with the sciences of the earth and its life - we are never bored.

There is something infinitely healing in the repeated refrains of nature.

The edge of the sea is a strange and beautiful place.

We still talk in terms of conquest. We still haven't become mature enough to think of ourselves as only a tiny part of a vast and incredible universe. Man's attitude toward nature is today critically important simply because we have now acquired a fateful power to alter and destroy nature. But man is a part of nature, and his war against nature is inevitably a war against himself.