“One of the hallmarks of the martial arts, military training, and athletic training of almost any kind is the hours upon hours upon hours of monotonous practice. An athlete at the highest level will train for years to perform movements that can last mere seconds—or less. The two-minute drill, how to escape from a chokehold, the perfect jumper. Simply knowing isn’t enough. It must be absorbed into the muscles and the body. It must become part of us. Or we risk losing it the second that we experience stress or difficulty.”

Ryan Holiday, The Daily Stoic (Page 153)