The purpose of an eight-nighter is to drive the individuals of the division, and the unit itself, beyond the point of humor. It is when the jokes stop, they say, that the real lessons are learned and each man, and the mora as a whole, make those incremental advances which pay off in the ultimate crucible. The hardship of the exercises is intended less to strengthen the back than to toughen the mind. The Spartans say that any army may win while it still has its legs under it; the real test comes when all strength is fled and the men must produce victory on will alone.
