Exercise and fitness motivation

Lack of activity destroys the good condition of every human being, while movement and methodical exercise saves it and preserves it.
- Plato

Physical fitness is not only one of the most important keys to a healthy body, it is the basis of dynamic and creative intellectual activity. The relationship between the soundness of the body and the activities of the mind is subtle and complex. Much is not yet understood. But we do know what the Greeks knew: that intelligence and skill can only function at the peak of their capacity when the body is healthy and strong; that hardy spirits and tough minds usually inhabit sound gods."
- JFK