himself will agree with the opinions which his elders consider desirable. It is assumed that he will reason from principles which have already been instilled into him by authority. But if his thinking for himself takes the form of questioning these principles, whether moral or religious, his parents and teachers, unless they are very exceptional persons, will be extremely displeased, and will certainly discourage him. It is, of course, only singularly promising children whose freedom of thought will go so far. In this sense it might be said that "distrust thy father and mother" is the first commandment with promise. It should be a part of education to explain to children, as soon as they are old enough to understand, when it is reasonable, and when it is not, to accept what they are told, on authority.
