In the same way, though sleep remained for me the richest pleasure in the world, I supplied its place by the uneasy swaying in the saddle of a night march, or failed of it for night after laborious night without undue fatigue. Such liberties came from years of control (contempt of use might well be the lesson of our manhood), and they fitted me peculiarly for our work: but, of course, in me they came half by training, half by trying, out of mixed choice and poverty, not effortlessly, as with the Arabs. Yet in compensation stood my energy of motive. Their less taut wills flagged before mine flagged, and by comparison made me seem tough and active.