Perhaps you know some well-off families who do not seem to suffer from their riches. They do not overeat themselves; they find occupations to keep themselves in health; they do not worry about their position; they put their money into safe investments and are content with a low rate of interest; and they bring up their children to live simply and do useful work. But this means that they do not live like rich people at all, and might therefore just as well have ordinary incomes.
A part of eugenic politics would finally land us in an extensive use of the lethal chamber. A great many people would have to be put out of existence simply because it wastes other people's time to look after them.
Instruction in sex is as important as instruction in food; yet not only are our adolescents not taught the physiology of sex, but never warned that the strongest sexual attraction may exist between persons so incompatible in tastes and capacities that they could not endure living together for a week much less a lifetime.
Every man is a revolutionist concerning the thing he understands. For example, every person who has mastered a profession is a skeptic concerning it, and consequently a revolutionist.