With reference to life there is not one nature; there are only associations of states and circumstances, varying from place to place and from time to time.

As far as life is concerned, there is no such thing as "Nature". There are only homes. Home is that environment to which the individual has become adapted; and almost everything is unnatural outside his range of adaptation. Harmonious equilibrium with nature is an abstract concept with a Platonic beauty but lacking the flesh and blood of life. It fails, in particular, to convey the creative emergent quality of human existence.

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.

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.

But solving problems of disease is not the same thing as creating health and happiness. (...) Health and happiness are the expression of the manner in which the individual responds and adapts to the challenges that he meets in everyday life.

Pathological states are the consequence of several determinate factors acting simultaneously...The manifestations of any given agent differ profoundly from one person to another. ...Each noxious agent can express itself by a great variety of different pathological states. ...Different agents can elicit similar reactions. ...The total environment and the (interior medium) constitute a multifactorial system.

The wooing of the Earth thus implies much more than converting the wilderness into humanized environments. It means also preserving natural environments in which to experience mysteries transcending daily life and from which to recapture, in a Proustian kind of remembrance, the awareness of the cosmic forces that have shaped humankind.