The joy of feeling fit physically is reflected in a clearer and more useful mind. You may read and study forever, but you come to no more important truthful conclusions than these two: 1. Take care of your body (eat and exercise properly), and your mind will improve. 2. Work hard, and be polite and fair, and your condition in the world will improve. No pills, tablets, lotions, philosophies, will do as much for you as this simple formula I have outlined. The formula is not of my invention. Every intelligent man of experience since time began has taught it as a natural fact.