So many older people, they just sit around all day long and they don't get any exercise. Their muscles atrophy, and they lose their strength, their energy and vitality by inactivity.

You can't get rid of it with exercise alone. You can do the most vigorous exercise and only burn up 300 calories in an hour. If you've got fat on your body, the exercise firms and tones the muscles. But when you use that tape measure, what makes it bigger? It's the fat!

People feel so guilty about not exercising. Especially people over 50, who feel like they've gone a lifetime without taking care of themselves. Instead of aiming for perfection, you should try to celebrate the progress you're making.

You can't separate the mind and body. It's impossible.

All athletes would be better if they eat better. Junk in equals Junk out.

Ask the guys who are doing serious triathlons if there are any limits to what can be done. The limit is right here. You've got to get physically fit between the ears. Muscles don't know anything. They have to be taught.

I do it as a therapy. I do it as something to keep me alive. We all need a little discipline. Exercise is my discipline.