Wonder and humility are wholesome emotions, and they do not exist side by side with a lust for destruction. - Rachel Carson

There is symbolic as well as actual beauty in the migration of the birds, the ebb and flow of the tides, the folded bud ready for the spring. There is something infinitely healing in the repeated refrains of nature - the assurance that dawn comes after night, and spring after the winter.

The most alarming of all man's assaults upon the environment is the contamination of air, earth, rivers, and sea with dangerous and even lethal materials.

This is an era of specialists, each of whom sees his own problem and is unaware of or intolerant of the larger frame into which it fits.