I have already said in the title that this work is intended not for the learned only, but for all educated men, for men of a serious turn of mind, who desire truth and science for their own sake. Like that ancient historian, whom I honor above all others as my teacher, I desire that my work should be useful to those, ὅσοι βουλήσοντοι τῶν τε γενομένων τὸ σαφὲς σκοπεῖν καὶ τῶν μελλόντων ποτὲ αὖθις κατὰ τὸ ἀνθρώπειον τοιούτων καὶ παραπλησίων ἔσεσθαι. (_Thucydides_ I, 22.) UNIVERSITY OF LEIPZIG, _End of May, 1854._ FROM THE AUTHOR’S PREFACES. (2D TO 11TH EDITION.) The preface to the second edition is dated October, 1856; that to the third, April, 1858; that to the fourth, April, 1861; that to the fifth, November, 1863; that to the sixth, November, 1865; that to the seventh, November, 1868; that to the eighth, August, 1869; that to the ninth, March, 1871; that to the tenth, May, 1873; that to the eleventh (unaltered), December, 1873. Each successive edition, nearly, has been announced as an improved and enlarged one; and the tenth edition contains one hundred and fifty-six pages more than the first, although in places, a large number of abbreviations had been made from previous editions. There are many things in some of the previous editions which criticism induced me, long since, to change. I have considered it my duty to the public, who gave my work so warm and friendly a reception, to take into consideration, in each successive edition, not only my own new investigations, but those also of all others with which I became acquainted, and, whenever possible, to correct statistical illustrations from the latest sources. I have especially, in each following edition, enriched a number of paragraphs with here and there historical, ethnographic and statistical features. Plutarch is certainly right, spite of the fact that pedants may abuse him for it, when he says, that trifling acts, a word and even a jest, are often more important, as characterizing the life of a people or an age, than great battles which cost the lives of tens of thousands of men.