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

The human race is challenged more than ever before to demonstrate our mastery, not over nature but of ourselves.

I still feel there is a case to be made for my old belief that as man approaches the 'new heaven and the new earth' -- or the space-age universe, if you will, he must do so with humility rather than with arrogance.

Then the song of a whitethroat, pure and ethereal, with the dreamy quality of remembered joy.

The question is whether any civilization can wage relentless war on life without destroying itself, and without losing the right to be called civilized.

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

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.