After all, whether this suggestion of a tendency toward superficiality be well founded or not, the proper use of time has come to be a more serious problem than ever for the entire world. The demands of modern living are so exacting that men and women everywhere must exercise deliberate selection in order to live wisely. To lay down general rules for the use of time would be as futile as to insist that every one should use coats of the same size and color, and eat the same kind and quantity of food. The best modern living may perhaps be correctly defined as a happy compromise in the aims and actions of the individual between self-interest and altruism. If one seeks to illustrate this definition by example it is desirable in the first place to eliminate the individuals in the community whose use of time is so completely out of keeping with this doctrine that it is not worth while to consider them. Murderers, forgers, and criminals of all kinds, including business men who practise petty thefts, and respectable tradesmen who give short weight and overcharge, instinctively occur to us. So do mere pleasure-seekers, drunkards, and idle gentlemen. On the same theory we must exclude monks, deliberate celibates, nuns, and all fanatical or eccentric persons whose conduct of life, however serviceable in itself as a leaven or an exception, could not be generally imitated without disaster to society. It would seem also as though we must exclude those who have yet to acquire such elemental virtues of wise living as cleanliness, reverence for the beautiful, and a certain amount of altruism. There is nothing to learn as to the wise use of time from those whose conceptions of life are handicapped by the habitual use of slang and bad grammar and by untidiness; who regard the manifestations of good taste and fine scholarship as “frills,” and who, though they be unselfish in the bosoms of their families, take no interest in the general welfare of the community.