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

Any attempt to shape the world and modify human personality in order to create a self-chosen pattern of life involves many unknown consequences. Human destiny is bound to remain a gamble, because at some unpredictable time and in some unforeseeable manner nature will strike back. The multiplicity of determinants which affect biological systems limits the power of the experimental method to predict their trends and behavior.

Sometimes the more measurable drives out the most important.

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

The most important pathological effects of pollution are extremely delayed and indirect.

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.

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.