To ward off disease or recover health, people as a rule find it easier to depend on healers than to attempt the more difficult task of living wisely.

Each civilization has its own kind of pestilence and can control it only by reforming itself.

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

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

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.

In 1946, Oxford University in England was offered large funds to create a new Institute of Human Nutrition. The University refused the funds on the ground that the knowledge of human nutrition was essentially complete, and that the proposed institution would soon run out of meaningful research projects.

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