" Now, the challenge is overtly physical during Hell Week—lots of cold, and sleep deprivation, and exhausting exercise in the surf and the mud. But physical transmogrifies to mental, when, after Hell Week, those tadpoles who made it through realize that they can do about 1,000 percent more than they thought they could. They are beginning to think like Warriors. "

― Richard Marcinko , Designation Gold (Rogue Warrior, #5)