" Gentlemen,” he said, “soon you will begin to wear the class shirt. You’ll wear it every day of the academic year and, per uniform regulation, you will secure your collar with the collar stays that have been issued to you. “It may seem insignificant to you now,” he continued, “but you’re here learning attention to detail.” For the next few minutes the combat-seasoned colonel compared neglecting to wear collar stays with forgetting ammunition for our soldiers in combat. Focusing on even the small things, he reasoned, develops a leader who never neglects the critical ones. "

― Stanley McChrystal , My Share of the Task: A Memoir