David Goggins

“The most important conversations you’ll ever have are the ones you’ll have with yourself. You wake up with them, you walk around with them, you go to bed with them, and eventually you act on them. Whether they be good or bad. We are all our own worst haters and doubters because self doubt is a natural reaction to any bold attempt to change your life for the better. You can’t stop it from blooming in your brain, but you can neutralize it, and all the other external chatter by asking, What if?”
― David Goggins, Can't Hurt Me: Master Your Mind and Defy the Odds