Nature is much our friend in this matter. Nature is always clarifying her water and her wine. No filtration can be so perfect. She does the same thing by books as by her gases and plants. There is always a selection in writers, and then a selection from the selection. In the first place, all books that get fairly into the vital air of the world were written by the successful class, by the affirming and advancing class, who utter what tens of thousands feel, though they cannot say. There has already been a scrutiny and choice from many hundreds of young pens, before the pamphlet or political chapter which you read in a fugitive journal comes to your eye. All these are young adventurers, who produce their performance to the wise ear of Time, who sits and weighs, and ten years hence out of a million of pages reprints one. Again it is judged, it is winnowed by all the winds of opinion, and what terrific selection has not passed on it, before it can be reprinted after twenty years, and reprinted after a century!--it is as if Minos and Rhadamanthus had indorsed the writing. 'Tis therefore an economy of time to read old and famed books. Nothing can be preserved which is not good; and I know beforehand that Pindar, Martial, Terence, Galen, Kepler, Galileo, Bacon, Erasmus, More, will be superior to the average intellect. In contemporaries, it is not so easy to distinguish betwixt notoriety and fame. Be sure, then, to read no mean books. Shun the spawn of the press on the gossip of the hour. Do not read what you shall learn without asking, in the street and the train. Dr. Johnson said, "he always went into stately shops"; and good travellers stop at the best hotels; for, though they cost more, they do not cost much more, and there is the good company and the best information. In like manner, the scholar knows that the famed books contain, first and last, the best thoughts and facts. Now and then, by rarest luck, in some foolish Grub Street is the gem we want. But in the best circles is the best information. If you should transfer the amount of your reading day by day in the newspaper to the standard authors,--but who dare speak of such a thing? The three practical rules, then, which I have to offer, are, 1. Never read any book that is not a year old. 2. Never read any but famed books. 3. Never read any but what you like; or, in Shakespeare's phrase, "No profit goes where is no pleasure ta'en; In brief, Sir, study what you most affect." Montaigne says, "Books are a languid pleasure"; but I find certain books vital and spermatic, not leaving the reader what he was; he shuts the book a richer man. I would never willingly read any others than such. And I will venture, at the risk of inditing a list of old primers and grammars, to count the few books which a superficial reader must thankfully use.