• "In terms of fitness and battling through cancer, exercise helps you stay strong physically and mentally." - Grete Waitz Tweet
• "I suffer panic attacks which has made me really conscious about my fitness and I have become addicted to jogging. It might sound odd but a lot of good has come out of it. My fans send letters saying they have taken up jogging because I do it." - Ellie Goulding Tweet
• "The value and utility of any experiment are determined by the fitness of the material to the purpose for which it is used, and thus in the case before us it cannot be immaterial what plants are subjected to experiment and in what manner such experiment is conducted." - Gregor Mendel Tweet
• "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 Tweet
• "I am about to get involved with the biggest cancer hospital in Norway. They are building a fitness center to work with patients. I will be a consultant." - Grete Waitz Tweet
• "I think exercise tests us in so many ways, our skills, our hearts, our ability to bounce back after setbacks. This is the inner beauty of sports and competition, and it can serve us all well as adult athletes." - Peggy Fleming Tweet
• "Shearer could be at 100 per cent fitness, but not peak fitness." - Graham Taylor Tweet
• "Fitness is a luxury when you are busy!" - Lauren Conrad Tweet
• "Overall, I think I'm in pretty good shape, but I'm not really someone that is gung-ho or a fitness fanatic." - Cobi Jones Tweet
• "The first time I see a jogger smiling, I'll consider it." - Joan Rivers Tweet