Sometimes the more measurable drives out the most important.

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

Human destiny is bound to remain a gamble, because at some unpredictable time and in some unforeseeable manner nature will strike back.

Man not only survives and functions in his environment, he shapes it and he is shaped by it.

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.

What happens in the mind of man is always reflected in the disease of his body.

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