If the sight be not the most necessary of all our senses, ‘tis at least the most pleasant; but the most pleasant and most useful of all our members seem to be those of generation; and yet a great many have conceived a mortal hatred against them only for this, that they were too pleasant, and have deprived themselves of them only for their value: as much thought he of his eyes that put them out. The generality and more solid sort of men look upon abundance of children as a great blessing; I, and some others, think it as great a benefit to be without them. And when you ask Thales why he does not marry, he tells you, because he has no mind to leave any posterity behind him.