Man even surpasses all the lower order of animals in his capacity for being trained. Mohammedans are trained to pray five times a day with their faces turned towards Mecca; and they do it regularly. Christians are trained to make the sign of the Cross on certain occasions, and to bow, and so forth; so that religion on the whole is a real masterpiece of training—that is to say, it trains people what they are to think; and the training, as is well known, cannot begin too early. There is no absurdity, however palpable it may be, which may not be fixed in the minds of all men, if it is inculcated before they are six years old by continual and earnest repetition. For it is the same with men as with animals, to train them with perfect success one must begin when they are very young