Then, one should learn to scan an author. This means to take a rapid observation of his thoughts. Much of one's common reading matter should be scanned. All local news, much magazine literature, and many books should be used in this way. It is mental sloth and waste of time to pore over a newspaper or a book of light fiction, as one would a philosophy of history or a work of science. As Bacon aptly puts it, "Some books are to be tasted, others to be swallowed, and some few to be chewed and digested; that is, some books are to be read only in parts; others to be read, but not curiously; and some few to be read wholly, and with diligence and attention. Some books also may be read by deputy, and extracts made of them by others." One's mind is like a horse, it soon learns its master. Feed it well, groom it well, treat it gently, you may expect much from it. It is reported of Dr. Newell Dwight Hillis that he has read a book a day for over twenty years. He has learned to squeeze the thought out of a book at a grasp, as one of us would squeeze the juice from an orange. Take a glimpse into his library. Five hundred volumes of sociological literature, four hundred volumes of history, two hundred of cyclopedias, gazetteers, books of reference; four hundred volumes of pure science, one hundred volumes of travels, two hundred and fifty volumes of biography; one hundred volumes of art and art history; a section on psychology, ethics, philosophy, and the relation between science and religion, and a thousand volumes of literature, pure and simple. WHEN TO READ. First, read at regular hours. This is for those who follow literary pursuits. No professional person should respect himself in his work who has no special time for reading and study, and who does not conscientiously adhere to it. The pulpit, the law-office, the doctor's office, the teacher, and the editor's desk, each clamors for the man, the woman, who can think. To appreciate God and to sympathize with the human heart; to know law and the intricate special case; to understand disease and relief for the suffering patient; to have something to teach and to know how to teach it even to the dullest pupil; to know human character and to be able to enlighten the public mind and the public conscience; all this requires in the one who serves a deep and growing knowledge and experience which may be realized only in the grasp of truth contained in the up-to-date and best authorized books. The use of books with this class of persons is not optional. They must buy and master them, or a few years at longest will relegate them with their old books and ideas to the dusty garret where they belong.