When I was about to break a world record and become well known, my mother used to say that for her the important thing was for me to become a doctor - a career which had not been possible in her generation and in her society. Sport was something to be set aside.

It's a question of spreading the available energy, aerobic and anaerobic, evenly over four minutes. If you run one part too fast, you pay a price. If you run another part more slowly your overall time is slower.

Every time I ran the mile I was aware of my own weakness, there was some opponent who could give me a hell of a fight, so I never went into a race with a sense of invincibility. I always had that feeling of fragility and nerves which made me run faster.

I enjoy singing, and the instruments which truly move me are the horn, the trumpet and the cello.

I raced supremely well. I felt I was as well fitted to do it as I had ever been, and as perhaps I might ever be. I went climbing three weeks before, because I was feeling fed up with running.

Doctors and scientists said breaking the four-minute mile was impossible, that one would die in the attempt. Thus, when I got up from the track after collapsing at the finish line, I figured I was dead

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.