“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: the intelligence and skill can only function at the peak of their capacity when the body is healthy and strong.”

President John f. kennedy

This quote means that you have to be physically fit in order for your creativity and mind to function at its best. You have to be health and strong to make good decisions. That is when you can use your mental and physical skills at its best.