It is a wholesome and necessary thing for us to turn again to the earth and in the contemplation of her beauties to know the sense of wonder and humility.

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.

But man is a part of nature, and his war against nature is inevitably a war against himself.

The control of nature is a phrase conceived in arrogance.

In every outthrust headland, in every curving beach, in every grain of sand there is the story of the earth.

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.