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 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.

One fact which emerges from these considerations is that no obstacle should be placed in the way of thought and its expression, nor yet in the way of statements of fact. This was formerly common ground among liberal thinkers,