Your heaviest artillery will be your will to live. Keep that big gun going.

History is an accumulation of error.

I have learned never to underestimate the capacity of the human mind and body to regenerate - even when prospects seem most wretched. The life force may be the least understood force on earth.

People are never more insecure than when they become obsessed with their fears at the expense of their dreams.

Pain is part of the body's magic. It is the way the body transmits a sign to the brain that something is wrong.

Nature has not been lavish in her endowments, but each person has his or her own potential in terms of achievement and service. The awareness of that potential is the discovery of purpose; the fulfillment of that potential is the discovery of strength.

The life-force may be the least understood force on earth.