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.

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 more clearly we can focus our attention on the wonders and realities of the universe about us, the less taste we shall have for destruction.

One way to open your eyes is to ask yourself, "What if I had never seen this before? What if I knew i would never see it again?

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

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

The years of early childhood are the time to prepare the soil.