of the Middle Ages and of feudalism: Marx and Sorel his idea of the struggle of classes and the rejuvenation of society by a return to a primitive state of mind and a new barbarism: and lastly the superman of Nietzsche recalls in some degree Vico's hero. These are merely a few names picked without care and almost at random; for to mention all, and each in his right place, would mean writing the whole history of the latest phase of European thought, a history which is not yet finished, though it has undergone, under the name of "positivism," a parenthetical recurrence of the abstract and materialistic thought of the eighteenth century, a parenthesis which now however seems to be at an end. These innumerable reappearances of the work of an individual in the work of several generations, this parallelism between a man and a century, justify a fanciful phrase with which we might draw from the later developments in order to describe Vico; namely that he is neither more nor less than the nineteenth century in germ. The description may serve to summarise our reconstruction and exposition of his doctrines, and to contribute towards a right understanding of his place in the history of modern philosophy. He may rightly be placed side by side with Leibniz, with whom he has so often been compared; but not, as has been believed, because of any resemblance (the comparisons made in this belief have been shown to be false or superficial) but precisely because he is unlike him and in fact his very opposite. Leibniz is Cartesianism raised to its highest power; an intellectualist, in spite of the _petites perceptions_ and the confused knowledge; a mechanicist, in spite of his dynamism, which perhaps exists in his fancy rather than in his actual thought; hostile to history, in spite of his immense historical erudition; blind to any knowledge of the true nature of language, though deeply interested in language all his life; devoid of dialectic, in spite of his attempt to explain the evil in the universe. In relation to later idealism, the Leibnitian philosophy stands as the most complete expression of the old metaphysic which had to be transcended: that of Vico is the sketch of the new metaphysic, only needing further development and determination. The one spoke to his own century, and his century crowded round him and echoed his words far and wide. The other spoke to a century yet to come; and the place in which he cried was a wilderness that gave no answer. But the crowd and the wilderness add nothing to and take nothing from the intrinsic character of a thought. [Footnote 1: See Appendix II.] APPENDICES APPENDIX I ON THE LIFE AND CHARACTER OF G. B. VICO[1] I