It is evident, however, that all men and women cannot equally enjoy the pursuit of scientific work. The variety of inclinations is such that some will find more pleasure in science, some others in art, and others again in some of the numberless branches of the production of wealth. But, whatever the occupations preferred by everyone, everyone will be the more useful in his own branch if he is in possession of a serious scientific knowledge. And, whosoever he might be--scientist or artist, physicist or surgeon, chemist or sociologist, historian or poet--he would be the gainer if he spent a part of his life in the workshop or the farm (the workshop _and_ the farm), if he were in contact with humanity in its daily work, and had the satisfaction of knowing that he himself discharges his duties as an unprivileged producer of wealth. How much better the historian and the sociologist would understand humanity if they knew it, not in books only, not in a few of its representatives, but as a whole, in its daily life, daily work, and daily affairs! How much more medicine would trust to hygiene, and how much less to prescriptions, if the young doctors were the nurses of the sick and the nurses received the education of the doctors of our time! And how much the poet would gain in his feeling of the beauties of nature, how much better would he know the human heart, if he met the rising sun amidst the tillers of the soil, himself a tiller; if he fought against the storm with the sailors on board ship; if he knew the poetry of labour and rest, sorrow and joy, struggle and conquest! _Greift nur hinein in’s volle Menschenleben!_ Goethe said; _Ein jeder lebt’s--nicht vielen ist’s bekannt._ But how few poets follow his advice! The so-called “division of labour” has grown under a system which condemned the masses to toil all the day long, and all the life long, at the same wearisome kind of labour. But if we take into account how few are the real producers of wealth in our present society, and how squandered is their labour, we must recognise that Franklin was right in saying that to work five hours a day would generally do for supplying each member of a civilised nation with the comfort now accessible for the few only.