When Harry and Lucy were on their journey to the sea-side, they fell to discussing whether they had rather have the gift of remembering all they read, or of once knowing everything, and then taking their chances for recollecting it when they wanted it. Lucy, who had a quick memory, was willing to take her chance. But Harry, who was more methodical, hated to lose anything he had once learned, and he thought he had rather have the good fairy give him the gift of recollecting all he had once learned. For my part, I quite agree with Harry. There are a great many things that I have no desire to know. I do not want to know in what words the King of Ashantee says, "Cut off the heads of those women." I do not want to know whether a centipede really has ninety-six legs or one hundred and four. I never did know. I never shall. I have no occasion to know. And I am glad not to have my mind lumbered up with the unnecessary information. On the other hand, that which I have once learned or read does in some way or other belong to my personal life. I am very glad if I can reproduce that in any way, and I am much obliged to anybody who will help me.
For reading, then, the first rules, I think, are: Do not read too much at a time; stop when you are tired; and, in whatever way, make some review of what you read, even as you go along.
Capel Lofft says, in quite an interesting book, which plays about the surface of things without going very deep, which he calls _Self-Formation_, [Footnote: Self-Formation. Crosby and Nichols. Boston. 1845.] that his whole life was changed, and indeed saved, when he learned that he must turn back at the end of each sentence, ask himself what it meant, if he believed it or disbelieved it, and, so to speak, that he must pack it away as part of his mental furniture before he took in another sentence. That is just as a dentist jams one little bit of gold-foil home, and then another, and then another. He does not put one large wad on the hollow tooth, and then crowd it all in at once. Capel Lofft says that this _reflection_--going forward as a serpent does, by a series of backward bends over the line--will make a dull book entertaining, and will make the reader master of every book he reads, through all time. For my part, I think this is cutting it rather fine, this chopping the book up into separate bits. I had rather read as one of my wisest counsellors did; he read, say a page, or a paragraph of a page or two, more or less; then he would look across at the wall, and consider the author's statement, and fix it on his mind, and then read on. I do not do this, however. I read half an hour or an hour, till I am ready, perhaps, to put the book by. Then I examine myself. What has this amounted to? What does he say? What does he prove? Does he prove it? What is there new in it? Where did he get it? If it is necessary in such an examination you can go back over the passage, correct your first impression, if it is wrong, find out the meaning that the writer has carelessly concealed, and such a process makes it certain that you yourself will remember his thought or his statement.