“The art of reading is to skip judiciously. Whole libraries may be skipped these days, when we have the results of them in our modern culture without going over the ground again. And even of the books we decide to read, there are almost always large portions which do not concern us, and which we are sure to forget the day after we have read them. The art is to skip all that does not concern us, while missing nothing that we really need. No external guidance can teach us this; for nobody but ourselves can guess what the needs of our intellect may be.”