We must not omit to mention that the members of a class into which a man has forced his way by good luck, or sheer force of talent, are apt, in spite of his talent, are apt, in spite of his success, to stigmatize him as an adventurer, when those who remain below him would consider him to have lost all claim to the character. The crowned heads of Europe, for instance, always regarded Bernadotte and Napoleon the Great as adventurers; they still so consider Napoleon III; and Cromwell was viewed in the same light by the English aristocracy. In short, the varieties of the species are innumerable, and it would take pages to enumerate the various modifications which an adventurer may undergo, and still be an adventurer. It is no part of our present purpose to detail their several characteristics.
Military Adventurers, 1858