John Amedeo

“Then I thought of an English middle-distance runner from back in the day named Roger Bannister. When Bannister was trying to break the four-minute mile in the 1950s, experts told him it couldn’t be done, but that didn’t stop him. He failed again and again, but he persevered, and when he ran his historic mile in 3:59.4 on May 6, 1954, he didn’t just break a record, he broke open the floodgates simply by proving it possible. Six weeks later, his record was eclipsed, and by now over 1,000 runners have done what was once thought to be beyond human capability.”
― David Goggins, Can't Hurt Me: Master Your Mind and Defy the Odds