"physical fitness is not only one of the most iumportant keys to a healthy body, it is the basis of dynamic and cretive 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"

president John F.Kennedy

reflection: I'm agree with the quote because if you eat good and do exercise and all that your body would be healthy and to learn your body needs to function correctly it has to be healthy to memorize, to concentrate , to think for all your body and your brain has to be healthy, our brain and body are very complex and you have to do physical fitness to keep your body healthy also you have to eat well , so that your body is healthy and strong to function correctly and to work as it should and work as it capacity , body healthy and mind healthy are the keys of intelligence.