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

This quote means that only when your body is healthy you can do whatever you want and help out yourself and even other people. When your body is healthy you are capable of many things. You can do stuff when your body isn’t healthy just that your body is a little more weak than when it’s healthy. You should have a powerful mind because that’s what makes us function best. It controls us and makes us do whatever we want. Without the mind being powerful we won’t function as well. We choose how we want our body to be either healthy or not healthy. Whether we choose for it not to be healthy or to be healthy we will always take control of the choices we make.