"The plan of Plutarch's Biographies is briefly explained by himself in the introduction to the Life of Alexander the Great, where he makes an apology for the brevity with which he is compelled to treat of the numerous events in the Lives of Alexander and Caesar. 'For,' he says, 'I do not write Histories, but Lives; nor do the most conspicuous acts of necessity exhibit a man's virtue or his vice, but oftentimes some slight circumstance, a word, or a jest, shows a man's character better than battles with the slaughter of tens of thousands, and the greatest arrays of armies and sieges of cities. Now, as painters produce a likeness by a representation of the countenance and the expression of the eyes, without troubling themselves about the other parts of the body, so I must be allowed to look rather into the signs of a man's character, and thus give a portrait of his life, leaving others to describe great events and battles.' The object then of Plutarch in his Biographies was a moral end, and the exhibition of the principal events in a man's life was subordinate to this his main design; and though he may not always have adhered to the principle which he laid down, it cannot be denied that his view of what biography should be, is much more exact than that of most persons who have attempted this style of composition. The life of a statesman or of a general, when written with a view of giving a complete history of all the public events in which he was engaged, is not biography, but history. This extract from Plutarch will also in some measure be an apology for the want of historical order observable in many of his Lives. Though altogether deficient in that critical sagacity which discerns truth from falsehood, and distinguishes the intricacies of confused and conflicting statements, Plutarch has preserved in his Lives a vast number of facts which would otherwise have been unknown to us. He was a great reader, and must have had access to large libraries. It is said that he quotes two hundred and fifty writers, a great part of whose works are now entirely lost." (_Penny Cyclopaedia_, art. "Plutarch," by the writer of this Preface.)