I’m haunted by my future goals, not my past failures. I’m haunted by what I may still become. I’m haunted by my own continued thirst for evolution. - David Goggins

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.

We didn’t care about muscle fatigue or breakdown because after a certain point we were training our minds, not our bodies. My workouts weren’t designed to make us fast runners or to be the strongest men on the mission. I was training us to take torture so we’d remain relaxed in extraordinarily uncomfortable environments.

You cannot be afraid to disappoint people. You have to live the life you want to live. Sometimes, that means being the motherfucker who can put a middle finger up to everyone in the room and be totally comfortable with that.