For the transcriber, and the editor, and the official or officious censor on the top of the editor, have played strange tricks, and have much to answer for. And if they are not to blame, it may turn out that the author wrote his book twice over, that you can discover the first jet, the progressive variations, things added, and things struck out. Next is the question where the writer got his information. If from a previous writer, it can be ascertained, and the inquiry has to be repeated. If from unpublished papers, they must be traced, and when the fountain-head is reached, or the track disappears, the question of veracity arises. The responsible writer's character, his position, antecedents, and probable motives have to be examined into; and this is what, in a different and adapted sense of the word, may be called the higher criticism, in comparison with the servile and often mechanical work of pursuing statements to their root. For a historian has to be treated as a witness, and not believed unless his sincerity is established.[1] The maxim that a man must be presumed to be innocent until his guilt is proved, was not made for him.
For us, then, the estimate of authorities, the weighing of testimony, is more meritorious than the potential discovery of new matter.[2] And modern history, which is the widest field of application, is not the best to learn our business in; for it is too wide, and the harvest has not been winnowed as in antiquity, and further on to the Crusades. It is better to examine what has been done for questions that are compact and circumscribed, such as the sources of Plutarch's Pericles, the two tracts on Athenian government, the origin of the epistle to Diognetus, the date of the life of St. Antony; and to learn from Schwegler how this analytical work began. More satisfying because more decisive has been the critical treatment of the medieval writers, parallel with the new editions, on which incredible labour has been lavished, and of which we have no better examples than the prefaces of Bishop Stubbs. An important event in this series was the attack on Dino Compagni, which, for the sake of
