John Boyd forever changed the way the United States fights wars, both on the ground and in the air. This is rather impressive considering his own limited battlefield experience, as he just missed World War II and barely caught the end of the Korean War.
Benjamin Franklin nailed it when he said, "Fatigue is the best pillow." True story, Benny. There's nothing like pushing your body so far past exhaustion that you'd willingly, even longingly, take a nap on a concrete slab.
U.S. Marine Corps photo by Cpl. Gene A. Ainsworth III
You make decisions every day. Dozens and dozens of them. Some are easy — coffee or latte? — and some are more complex. Regardless of what kind of decision you need to make, you generally have as much time and information as you need to make the best call.