I wanted to be a neurologist. That seemed to be the most difficult, most intriguing, and the most important aspect of medicine, which had links with psychology, aggression, behavior, and human affairs.

Just because they say it's impossible doesn't mean you can't do it.

You get very tired, and there was a certain amount of pain and you slow up. Your legs are so tired that you are in fact slowing. If you don't keep running, keep your blood circulating, the muscles stop pumping the blood back and you get dizzy.

Mothers, unless they were very poor, didn't work. Both of my parents had to leave education. My mother had to work in a cotton mill until 18 or 19, when she took some training in domestic science.

I trained for less than three-quarters of an hour, maybe five days a week - I didn't have time to do more. But it was all about quality, not quantity - so I didn't waste time jogging, ever.

If I faltered, there would be no arms to hold me and the world would be a cold and forbidding place.

It is a paradox to say the human body has no 'limit.' There must be a limit to the speed at which men can run. I feel this may be around 3:30 for the mile. However, another paradox remains - if an athlete manages to run 3:30, another runner could be found to marginally improve on that time.