accidental phenomena of modern commercial operations, nor has it been true in its investigation even of these. It has no connection whatever with political economy, as understood and treated of by the great thinkers of past ages; and as long as its unscholarly and undefined statements are allowed to pass under the same name, every word written on the subject by those thinkers—and chiefly the words of Plato, Xenophon, Cicero, and Bacon—must be nearly useless to mankind. The reader must not, therefore, be surprised at the care and insistance with which I have retained the literal and earliest sense of all important terms used in these papers; for a word is usually well made at the time it is first wanted; its youngest meaning has in it the full strength of its youth; subsequent senses are commonly warped or weakened; and as all careful thinkers are sure to have used their words accurately, the first condition, in order to be able to avail ourselves of their sayings at all, is firm definition of terms.
3. By the "maintenance" of a State is to be understood the support of its population in healthy and happy life; and the increase of
