Human life is now molded to a large extent by the changes that man has brought about in his external environment and by his attempts at controlling body and soul.

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

The belief that we can manage the Earth and improve on Nature is probably the ultimate expression of human conceit, but it has deep roots in the past and is almost universal.

In man, at least, satisfaction is commonly followed by boredom.

... each type of civilization has had diseases peculiar to it and at each period the various social groups in any community also have differed in this regard.

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.

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.