How important was his introduction of the principle into politics can only be realised by those who know how much the principle means; and it is still in the stage of being vilified by the pious and contemned by the superficial, in which latter class may be included a good many Socialists. The former heap upon avowed Neo-Malthusians an abuse which they withhold from eminent politicians who confess opinions that imply Neo-Malthusianism or nothing. Mr John Morley, for instance, has expressed his regret that "we,"--that is, the Liberal party in general--shirk the population question so much; and Mr Leonard Courtney has laid it down that we may as well build a house in disregard of the law of gravitation as hope to make a community prosper without regard to the law of population. The late Lord Derby spoke to similar effect. Either, then, such politicians mean to urge, with Malthus, that working-men shall postpone marriage until they have saved a good deal of money--that is, till middle or late life--or they approve of early marriage with conjugal prudence. That is the whole matter; for the nature of the prudence is a quite subsidiary question, on which no wise man or doctor will narrowly dogmatise. But nobody, not even the _Times_, denounces or insults Mr Courtney or Mr Morley or the late Lord Derby for saying what each of them has said. As usual, the man who says explicitly what other men say implicitly is singled out for attack, not on the score of taste, but on the score of the plain doctrine, however put.