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.

... 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.

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.

Life is short, the art is long, the problems pressing.

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.

Sometimes the more measurable drives out the most important.

Man will survive as a species for one reason: He can adapt to the destructive effects of our power-intoxicated technology and of our ungoverned population growth, to the dirt, pollution and noise of a New York or Tokyo. And that is the tragedy. It is not man the ecological crisis threatens to destroy but the quality of human life.