In dealing with method heretofore, I have at times come dangerously near to making a false assumption. I have been talking as if a man who took up political science, shorthand, or any other subject, were dealing with only one problem. As a matter of fact he is dealing with a whole series of problems. Just how many it is difficult to say, because no problem worthy of the name is an indivisible unit, and may always be broken into smaller problems. The whole science of æsthetics is included in the simple question “What is beauty?”, the science of ethics is merely the answer to “What is right conduct?”, and metaphysics may be reduced to the problem “What is reality?” But when we come to deal with any of these we instinctively break them up into smaller and more concrete problems, making the treatment easier, just as a general attempts to split his enemy’s forces, so that he can annihilate one section at a time. Often, indeed, the very division of the larger problem into smaller problems constitutes its solution, for we finally come to a problem which practically answers itself, and which we recognize as being included in, or a particular form of, some more general problem to which we already know the answer. A man sets before himself the question, “What is the proper sphere of Government?” Perhaps he will first of all consider certain different specific activities which might possibly be supposed to come within the sphere of governmental interference. He might ask himself, for instance, “Should the Government interfere with freedom of contract?” Notice that he has here temporarily made his problem narrower, he has chosen to break it up in order to deal with it part by part. But even when he came to cope with this smaller problem he would probably find it necessary to break this up, and he would therefore take a specific example. Suppose a man works for so much an hour, and that nine hours’ work a day gives him the minimum amount on which he can live and support his family. Would it be wise to limit the legal working day of such a man to eight hours? This problem practically answers itself, and so further division is unnecessary. Of course the answer to this does not determine the answer to the original question, for other parts still remain to be considered. In fact, much of the success of our thinking will depend upon just how we divide our big problems into subsidiary problems, and just what our subsidiary or subordinate problems are. This will depend to some extent on our own natural sagacity, and to some extent on mere chance. No rigid rules can be laid down. The only advice which can be offered is that when a thinker breaks up a problem he should do so with an eye to utility and definiteness.