" You have asked, Itanes, if I feel fear. I answer, I may not. The soldier in the line is permitted to feel terror; the commander never. Too much depends upon him - the lives of his mates, the fate of the action. He cannot allow himself the luxury of fear. I eat mine, as a lion devours a kid. I consume it by my will to glory and my obligation to the corps. "

― Steven Pressfield , The Virtues of War