The shore is an ancient world, for as long as there has been an earth and sea there has been this place of the meeting of land and water.

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.

Knowing what I do, there would be no future peace for me if I kept silent... It is, in the deepest sense, a privilege as well as a duty to speak out to many thousands of people.

Nothing is wasted in the sea; every particle of material is used over and over again, first by one creature, then by another. And when in spring the waters are deeply stirred, the warm bottom water brings to the surface a rich supply of minerals, ready for use by new forms of life.

Darling -- I suppose the world would consider us absolutely crazy, but it is wonderful to feel that way, isn't it? Sort of a perpetual springtime in our hearts.

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

Those who contemplate the beauty of the earth find reserves of strength that will endure as long as life lasts. There is something infinitely healing in the repeated refrains of nature -- the assurance that dawn comes after night, and spring after winter.