A vigorous five-mile walk will do more good for an...

A vigorous five-mile walk will do more good for an unhappy but otherwise healthy adult than all the medicine and psychology in the world.

Paul Dudley White

Effort only fully releases its reward after a person refuses to quit.

Never complain and never explain.

A good plan violently executed now is better than a perfect plan executed next week.

George S. Patton

Problems are not stop signs, they are guidelines.

Robert Schuller

Never give up, for that is just the place and time that the tide will turn.

Harriet Beecher Stowe

A vigorous five-mile walk ...