first, by achieving an inner calm so that I can work undisturbed by what goes on around me; second, by concentrating on the thing in hand; third, by arranging a routine pattern for my days that allots certain activities to certain hours, planning in advance for everything that must be done, but at the same time remaining flexible enough to allow for the unexpected. There is a fourth point which, perhaps, plays a considerable part in the use of my time. I try to maintain a general pattern of good health so that I have the best use of my energy whenever I need it.