When we go down to the low-tide line, we enter a world that is as old as the earth itself - the primeval meeting place of the elements of earth and water, a place of compromise and conflit and eternal change.

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

A Who's Who of pesticides is therefore of concern to us all. If we are going to live so intimately with these chemicals eating and drinking them, taking them into the very marrow of our bones - we had better know something about their nature and their power.

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.

Unless we have courage to recognize cruelty for what it is - whether its victim is human or animal - we cannot expect things to be much better in the world.

To understand the living present, and the promise of the future, it is necessary to remember the past.