In ancient times, however, the great business of the officers, certainly in all the subordinate grades, was to lead on the men, and set them an example by performing themselves deeds in which their own great personal prowess was displayed. Of course it was considered extremely important that the child destined to be a general should become robust and powerful in constitution from his earliest years, and that he should be inured to hardship and fatigue. In the early part of Alexander's life this was the main object of attention.