The difficulty with children is that they need protection from risks they are too young to understand, and attacks they can neither avoid nor resist. You may on academic grounds allow a child to snatch glowing coals from the fire once. You will not do it twice. The risks of liberty we must let everyone take; but the risks of ignorance and self-helplessness are another matter. Not only children but adults need protection from them. At present adults are often exposed to risks outside their knowledge or beyond their comprehension or powers of resistance or foresight: for example, we have to look on every day at marriages or financial speculations that may involve far worse consequences than burnt fingers. And just as it is part of the business of adults to protect children, to feed them, clothe them, shelter them, and shift for them in all sorts of ways until they are able to shift for themselves, it is coming more and more to be seen that this is true not only of the relation between adults and children, but between adults and adults. We shall not always look on indifferently at foolish marriages and financial speculations, nor allow dead men to control live communities by ridiculous wills and living heirs to squander and ruin great estates, nor tolerate a hundred other absurd liberties that we allow today because we are too lazy to find out the proper way to interfere. But the interference must be regulated by some theory of the individual's rights. Though the right to live is absolute, it is not unconditional. If a man is unbearably mischievous, he must be killed. This is a mere matter of necessity, like the killing of a man-eating tiger in a nursery, a venomous snake in the garden, or a fox in the poultry yard. No society could be constructed on the assumption that such extermination is a violation of the creature's right to live, and therefore must not be allowed. And then at once arises the danger into which morality has led us: the danger of persecution. One Christian spreading his doctrines may seem more mischievous than a dozen thieves: throw him therefore to the lions. A lying or disobedient child may corrupt a whole generation and make human Society impossible: therefore thrash the vice out of him. And so on until our whole system of abortion, intimidation, tyranny, cruelty and the rest is in full swing again.