'I think people can handle 150 to 200 miles a week. But something has to give somewhere. If he's a student, how's he going to study? He may be at the age of chasing and courtship, and that's an important form of sport and recreation, too.'

'A teacher is never too smart to learn from his pupils. But while runners differ, basic principles never change. So it's a matter of fitting your current pract…

'If someone says, 'Hey, I ran 100 miles this week. How far did you run?' Ignore him! What the hell difference does it make? The magic is in the man, not the 10…

'I still bother with runners I call hamburgers. They're never going to run any record times. But they can fulfill their own potential.'

I believe that every human has a finite number of heartbeats. I don't intend to waste any of mine running around doing exercises.

Live a balanced life - learn some and think some and draw and paint and sing and dance and play and work every day some.

Sometimes people need a breather.