In defence of the competitive system two arguments have been familiar from old days. One is based on the habits of the working classes. It is said that they spend their surplus incomes on drink, and that if they have no margin for saving, it is because they have sunk it in the public-house. That argument is rapidly being met by the actual change of habits. The wave of temperance which two generations ago reformed the habits of the well-to-do in England is rapidly spreading through all classes in our own time. The drink bill is still excessive, the proportion of his weekly wages spent on drink by the average workman is still too great, but it is a diminishing quantity, and the fear which might have been legitimately expressed in old days that to add to wages was to add to the drink bill could no longer be felt as a valid objection to any improvement in the material condition of the working population in our own time. We no longer find the drink bill heavily increasing in years of commercial prosperity as of old. The second argument has experienced an even more decisive fate. Down to my own time it was forcibly contended that any improvement in the material condition of the mass of the people would result in an increase of the birth rate which, by extending the supply of labour, would bring down wages by an automatic process to the old level. There would be more people and they would all be as miserable as before. The actual decline of the birth rate, whatever its other consequences may be, has driven this argument from the field. The birth rate does not increase with prosperity, but diminishes. There is no fear of over-population; if there is any present danger, it is upon the other side. The fate of these two arguments must be reckoned as a very important factor in the changes of opinion which we have noted.