To return, then, to the remark that we should use as materials for unaided thinking the problems which occur spontaneously. You will find when you begin to solve these that other problems will arise, and that up to a certain point, the deeper you go into a subject—the more critical you are in your thinking—the more problems will occur. Perhaps it would be too much to ask you to solve all of these. Yet even a little of this preliminary thinking will be of immense help in reading. It will give you a far better sense of the importance of different problems which a book considers, and you will not judge their significance merely by the space it devotes to them. An author may indeed bring before us certain problems which had not hitherto occurred, and stimulate in us a sense of their importance. But this artificial stimulation can never take the place of natural and spontaneous wonder. Once we have obtained a solution of a problem which has arisen spontaneously and from within, we do not easily forget it. Our independent thinking, too, will have given us an idea of the difficulties presented by problems, and will make us more critical in reading and more appreciative of the solutions of an author. Not least of all, if we read first we are extremely liable to fall into the routine and traditional ways of considering a subject, whereas if we first think, we are more likely in our insophistication to hit upon an idea of real originality. One last objection to thinking before reading remains. Schopenhauer has answered it in his forcible manner: “A man may have discovered some portion of truth or wisdom after spending a great deal of time and trouble in thinking it over for himself, adding thought to thought; and it may sometimes happen that he could have found it all ready to hand in a book and spared himself the trouble. But even so it is a hundred times more valuable, for he has acquired it by thinking it out for himself. For it is only when we gain our knowledge in this way that it enters as an integral part, a living member, into the whole system of our thought; that it stands in complete and firm relation with what we know, that it is understood with all that underlies it and follows from it, that it wears the color, the precise shade, the distinguishing mark, of our own way of thinking, that it comes exactly at the right time, just as we felt the need for it; that it stands fast and cannot be forgotten.”[18]