People always ask me, "What kind of people make it through Hell Week?" I don't really have an answer to that. I do know-- generally-- who won't make it through Hell Week. The weightlifting meatheads who think the size of their biceps indicates their strength: they usually fail. The kids covered in tattoos announcing to the world how tough they are: they usually fail. The preening leaders who don't want to be dirty: they usually fail. The "me first, look at me, I'm the best" former athletes who've always been told they're stars: they usually fail. The blowhards who have a thousand stories about what they're going to do but a thin record of what they've actually done: they usually fail. The whiners, the "this is not fair" guys: they usually fail.

Author: Eric Greitens