Now, here is what I find so interesting about the Roger Bannister story. Within ten years after Roger Bannister broke that record, 336 other runners had broken the four-minute-mile record as well! Think about that. For hundreds of years, as far back as statisticians kept track-and-field records, nobody ran a mile in less than four minutes; then, within a decade, more than three hundred people from various geographic locations were able to do it. What happened?
Simple. The barrier to running a four-minute mile was in the athlete’s minds. For all those years, runners believed what the experts were saying. They were convinced that it was impossible to run a mile in less than four minutes.
Your Best Life Now, Joel Osteen, pages 29, 30