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

... men as a rule are more preoccupied with the dangers that threaten their life than interested in the biological forces on which they depend for a constructive existence.

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

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

Whatever his inhibitions and tastes, Western man believes in the natural holiness of seminudism and raw vegetable juice, because these have become for him symbols of unadultered nature.

Biologically, man is still the great amateur of the animal kingdom; he is unique in his lack of anatomical and physiological specialization.

...Search for the cause may be a hopeless pursuit because most disease states are the indirect outcome of a constellation of circumstances.