Though all her other books should die, and be buried utterly under the dust of time, this one will never be entirely lost. It is as accurate and as careful in its facts as the driest compendium, while yet its pages glow with eloquence, and are instinct with political wisdom. She really did here what she had designed to do in _Society in America_; but here she did it in the right method, there in a wrong one. The great growth of her mind in twelve years of maturity could not be better gauged than by a comparison of these two works. Her political principles did not change in the time; she was a true believer in popular government all her life--her love of justice caused her to be a hater of class rule, and of every kind of privilege; her sympathies were boundless, and made her in earnest for the freedom and progress of the democracy; her conscience was active so that she loved truth for its own sake; and her sense of duty never failed to keep alive in her large mind a feeling of personal concern in the progress of public affairs. All this was true of her when she wrote her American book; it was equally true when she treated the history of her own land and her own times. But in the latter case, she writes on political philosophy like a statesman--in the former there is much of the doctrinaire. In the latter work, principles underlie the whole fabric; but the actions of politicians are made the means of judging their own professed creeds, the value of those creeds being easily appraised by the results seen to follow on actions in conformity with them. In the earlier work, as we saw, the theories were postulated first, and the actions were measured against those self-derived standards of right and wrong. For political sagacity, for nobility of public spirit, for effective thought, for knowledge of facts, for clear presentation of them, for accuracy in judging of their permanent importance, for candor, and impartiality, for insight into character, and for vivid and glowing eloquence, _The History of the Thirty Years' Peace_ stands forth unmatched amongst books of its class. This, I take it, will be the most enduring and valuable of all her works, and the one by which chiefly posterity will learn what were her powers and how estimable was her character.