Was there not a little quackery in Socrates with his familiar dæmon, and the express declaration of Apollo, that he was the wisest of all men? How can Rollin in his history reason from this oracle? Why not inform youth that it was a pure imposition? Socrates chose his time ill: about a hundred years before he might have governed Athens. Every chief of a sect in philosophy has been a little of a quack; but the greatest of all have been those who have aspired to govern. Cromwell was the most terrible of all quacks, and appeared precisely at a time in which he could succeed. Under Elizabeth he would have been hanged; under Charles II., laughed at. Fortunately for himself he came at a time when people were disgusted with kings: his son followed, when they were weary of protectors. _Of the Quackery of Sciences and of Literature._ The followers of science have never been able to dispense with quackery. Each would have his opinions prevail; the subtle doctor would eclipse the angelic doctor, and the profound doctor would reign alone. Everyone erects his own system of physics, metaphysics, and scholastic theology; and the question is, who will value his merchandise? You have dependants who cry it up, fools who believe you, and protectors on whom to lean. Can there be greater quackery than the substitution of words for things, or than a wish to make others believe what we do not believe ourselves? One establishes vortices of subtile matter, branched, globular, and tubular; another, elements of matter which are not matter, and a pre-established harmony which makes the clock of the body sound the hour, when the needle of the clock of the soul is duly pointed. These chimeras found partisans for many years, and when these ideas went out of fashion, new pretenders to inspiration mounted upon the ambulatory stage. They banished the germs of the world, asserted that the sea produced mountains, and that men were formerly fishes. How much quackery has always pervaded history: either by astonishing the reader with prodigies, tickling the malignity of human nature with satire, or by flattering the families of tyrants with infamous eulogies! The unhappy class who write in order to live, are quacks of another kind. A poor man who has no trade, and has had the misfortune to have been at college, thinks that he knows how to write, and repairing to a neighboring bookseller, demands employment. The bookseller knows that most persons keeping houses are desirous of small libraries, and require abridgments and new tables, orders an abridgment of the history of Rapin Thoyras, or of the church; a collection of _bon mots_ from the Menagiana, or a dictionary of great men, in which some obscure pedant is placed by the side of Cicero, and a sonneteer of Italy as near as possible to Virgil.