Of course, school is merely a preparation for living; unless one goes to a university, in which case it is a preparation for university. One is supposed to turn one's attention to living when these preliminaries are over--say at the age of about twenty. Assuredly one lives then; there is, however, nothing new in that, for one has been living all the time, in a fashion; all the time one has been using the machine without understanding it. But does one, school and college being over, enter upon a study of the machine? Not a bit. The question then becomes, not how to live, but how to obtain and retain a position in which one will be able to live; how to get minute portions of dead animals and plants which one can swallow, in order not to die of hunger; how to acquire and constantly renew a stock of other portions of dead animals and plants in which one can envelop oneself in order not to die of cold; how to procure the exclusive right of entry into certain huts where one may sleep and eat without being rained upon by the clouds of heaven. And so forth. And when one has realised this ambition, there comes the desire to be able to double the operation and do it, not for oneself alone, but for oneself and another. Marriage! But no scientific sustained attention is yet given to the real business of living, of smooth intercourse, of self-expression, of conscious adaptation to environment--in brief, to the study of the machine. At thirty the chances are that a man will understand better the draught of a chimney than his own respiratory apparatus--to name one of the simple, obvious things--and as for understanding the working of his own brain--what an idea! As for the skill to avoid the waste of power involved by friction in the business of living, do we give an hour to it in a month? Do we ever at all examine it save in an amateurish and clumsy fashion? A young lady produces a water-colour drawing. 'Very nice!' we say, and add, to ourselves, 'For an amateur.' But our living is more amateurish than that young lady's drawing; though surely we ought every one of us to be professionals at living!