It is his fidelity to this principle, his dealing with events and circumstances chiefly as they illustrate character, his delineation of the features of the souls of men, that constitutes Plutarch's highest merit as a biographer. He is no historian; he often neglects chronology, and disregards the sequence of events; he omits many incidents, and he avoids the details of national and political affairs. The progress of the advance or decline of states is not to be learned from his pages. But if his Lives be read in chronological order, much may be inferred from them of the moral condition and changes of the communities in which the men flourished whose characters and actions he describes. Biography is thus made to cast an incidental light upon history. The successes of Alexander give evidence of the lowering of the Greek spirit, and illustrate the immemorial weakness of Oriental tyrannies. The victories and the defeats of Pyrrhus alike display the vigor of Republican Rome. The character and the fate of Mark Antony show that vigor at its ebb, and foretell the near fall of the Roman liberties. Thus in his long series of lives of noble Grecians and Romans, the motives and principles which lay at the foundation of the characters of the men who moulded the fate of Greece and Rome, the reciprocal influences of their times upon these men and of these men upon their times, may all be traced with more or less distinctness and certainty. It was not Plutarch's object to exhibit them in sequent evolution, but, in attaining the object which he had in view, he could not fail to make them manifest to the thoughtful reader. His book, though not a history, is invaluable to historians.