The opening of Preface
There must always be something arbitrary in the choice and isolation of a period of social history for special study. No period can, from one point of view, be broken off and isolated from the immemorial influences which have moulded it, from the succession of coming ages which it will help to fashion. And this is specially true of the history of a race at once so aggressive, yet so tenacious of the past, as the Roman. The national fibre was so tough, and its tone and sentiment so conservative under all external changes, that when a man knows any considerable period of Roman social history, he may almost, without paradox, be said to know a great deal of it from Romulus to Honorius.