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

Human life implies adventure, and there is no adventure without struggles and dangers.

The word "wilderness" occurs approximately three hundred times in the Bible, and all its meanings are derogatory.

Eradication of microbial disease is a will-o'-the-wisp; pursuing it leads into a morass of hazy biological concepts and half truths.

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

Sometimes the more measurable drives out the most important.

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.