A remarkable example is that of Plutarch, who, although born a Greek and writing in the Greek language, was a contemporary of Tacitus, lived long in Rome, and was one of the "immortals" of the imperial age. A teacher of philosophy during his early manhood, he spent his last years as archon and priest of Apollo in his native town. His most famous work is his "Parallel Lives" of forty-six historic Greeks and Romans, arranged in pairs, depicted with marvellous art and all the fascination of anecdote and social wit, while presenting such clear conceptions of characters and careers, and the whole so restrained within the bounds of good taste and harmonious proportion, as to have been even to this day regarded as forming a model for the ideal biography. But it is taking a narrow view of history to make all writers after the same pattern, even as it would be bigoted to make all Christians belong to the same sect. Some will be remarkable for style, others for learning, and others again for moral and philosophical wisdom; some will be minute, and others generalizing; some will dig out a multiplicity of facts without apparent object, and others induce from those facts; some will make essays, and others chronicles. We have need of all styles and all kinds of excellence. A great and original thinker may not have the time or opportunity or taste for a minute and searching criticism of original authorities; but he may be able to generalize previously established facts so as to draw most valuable moral instruction from them for the benefit of his readers. History is a boundless field of inquiry; no man can master it in all its departments and periods. It will not do to lay great emphasis on minute details, and neglect the art of generalization. If an historian attempts to embody too much learning, he is likely to be deficient in originality; if he would say everything, he is apt to be dry; if he elaborates too much, he loses animation. Moreover, different classes of readers require different kinds and styles of histories; there must be histories for students, histories for old men, histories for young men, histories to amuse, and histories to instruct. If all men were to write history according to Dr. Arnold's views, we should have histories of interest only to classical scholars. The ancient historians never quoted their sources of knowledge, but were valued for their richness of thoughts and artistic beauty of style. The ages in which they flourished attached no value to pedantic displays of learning paraded in foot-notes.