Death is not the enemy; living in constant fear of it is.

Laughter may or may not activate the endorphins or enhance respiration, as some medical researchers contend. What seems clear, however, is that laughter is an antidote to apprehension and panic.

The most costly disease is boredom costly for both individual and society.

I've learned that next to the atomic bomb, the greatest danger is defeatism, despair, and inadequate awareness of what human beings possess. I feel that any problem that can be defined is capable of being resolved. Out of this has come my conviction that no person knows enough to be a pessimist.

We have learned to live in a world of mistakes and defective products as if they were necessary to life. It is time to adopt a new philosophy in America.

Of all the gifts bestowed by nature on human beings, hearty laughter must be close to the top.

It is reasonable to expect the doctor to recognize that science may not have all the answers to problems of health and healing.