“Walking is the best possible exercise. Habituate yourself to walk very fast.”– Thomas Jefferson Related Quotes “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.”– John F. Kennedy “I’ve had one very bad ankle injury but otherwise I’ve been incredibly lucky with my fitness. I’ve worked hard at it and I’ve always been fit even compared to other players. That sustains you through various parts of your career, but I am 36.”– Graeme Le Saux “I think a basic level of fitness can help the body cope with all manner of incidents.”– Richard Hammond