It may also be said that rational,industrious,useful human beings are divided into two classes:first,those whose work is work and whose pleasure is pleasure;and secondly,those whose work and pleasure are one. Of these the former are the majority. They have their compensations. The long hours in the office or the factory bring with them as their reward,not only the means of sustenance,but a keen appetite for pleasure even in its simplest and most modest forms. But Fortune's favored children belong to the second class. Their life is a natural harmony. For them the working hours are never long enough. Each day is a holiday,and ordinary holidays when they come are grudged as enforced interruptions in an absorbing vacation. Yet to both classes the need of an alternative outlook,of a change of atmosphere,of a diversion of effort,is essential. Indeed,it may well be that those whose work is their pleasure are those who most need the means of banishing it at intervals from their minds.