Each civilization has its own kind of pestilence and can control it only by reforming itself.

Clearly, health and disease cannot be defined merely in terms of anatomical, physiological, or mental attributes. Their real measure is the ability of the individual to function in a manner acceptable to himself and to the group of which he is a part.

Biologically, man is still the great amateur of the animal kingdom; he is unique in his lack of anatomical and physiological specialization.

There is an unbroken continuum from the wisdom of the body to the wisdom of the mind, from the wisdom of the individual to the wisdom of the race.

Human life implies adventure, and there is no adventure without struggles and dangers.

Human diversity makes tolerance more than a virtue; it makes it a requirement for survival.

It is not man the ecological crisis threatens to destroy but the quality of human life.