The very process of living is a continual interplay between the individual and his environment, often taking the form of a struggle resulting in injury or disease.

But too often the goal of the planners is a universal gray state of health corresponding to absence of disease rather than to a positive attribute conducive to joyful and creative living. This kind of health will not rule out and may even generate another form of ill, the boredom which is the penalty of a formula of life where nothing is left unforeseen.

Social evolution may be the result of intention, but it rarely, if ever, produces the result intended.

You cannot see the Milky Way in New York City any more ... We risk the loss of our sensual perception. And if you lose those, naturally, you try to compensate by other stimulations, by very loud noises, or by bright lights or drugs.

Think globally, act locally": "Our salvation depends upon our ability to create a religion of nature.

One may wonder indeed whether the pretense of superior health is not itself rapidly becoming a mental aberration.

Wherever human beings are concerned, trend is not destiny.