The position of those parents who first disbelieved in the utility of infant sacrifice illustrates all the difficulties which arise in connection with the adjustment of individual freedom to public control. The authorities, believing the sacrifice necessary for the good of the community, were bound to insist upon it; the parents, believing it useless, were equally bound to do everything in their power toward saving the child. How ought both parties to act in such a case?
The duty of the skeptical parent is plain: to save the child by any possible means, to preach the uselessness of the sacrifice in season and out of season, and to endure patiently whatever penalty the law may indict for evasion. But the duty of the authorities is far less clear. So long as they remain firmly persuaded that the universal sacrifice of the first-born is indispensable, they are bound to persecute those who seek to undermine this belief. But they will, if they are conscientious, very carefully examine the arguments of opponents, and be willing in advance to admit that these arguments _may_ be sound. They will carefully search their own hearts to see whether hatred of children or pleasure in cruelty has anything to do with their belief. They will remember that in the past history of Khai-muh there are innumerable instances of beliefs, now known to be false, on account of which those who disagreed with the prevalent view were put to death. Finally they will reflect that, though errors which are traditional are often wide-spread, new beliefs seldom win acceptance unless they are nearer to the truth than what they replace; and they will conclude that a new belief is probably either an advance, or so unlikely to become common as to be innocuous. All these considerations will make them hesitate before they resort to punishment.
The study of past times and uncivilized races makes it clear beyond question that the customary beliefs of tribes or nations are almost invariably false. It is difficult to divest ourselves completely of the customary beliefs of our own age and nation, but it is not very difficult to achieve a certain degree of doubt in regard to them. The Inquisitor who burnt men at the stake was acting with true humanity if all his beliefs were correct; but if they were in error at any point, he was inflicting a wholly unnecessary cruelty. A good working maxim in such matters is this: Do not trust customary beliefs so far as to perform actions which must be disastrous unless the beliefs in question are wholly true. The world would be utterly bad, in the opinion of the average Englishman, unless he could say "Britannia rules the waves"; in the opinion of the average German, unless he could say "Deutschland über alles." For the sake of these beliefs, they are willing to destroy European civilization. If the beliefs should happen to be false, their action is regrettable.