Discipline is no longer literal obedience but intelligent...

Discipline is no longer literal obedience but intelligent obedience, for discipline aims at obedience coupled with activity of will. Once discipline weakens and vanishes, as it does towards the latter stages of the fire fight, and the crowd instinct possesses the soldier, then will he, if training has formed those necessary mental reflexes, surrender himself to the will of his leader; this is where leadership supplants discipline without destroying it.