It would be impossible to recapitulate the arguments or even to indicate the varying points of view. And indeed the main hindrance in forming a just idea of _The Prince_ is the constant treatment of a single side of the book and the preconceived intent of the critic. Bacon has already been mentioned. Among later names are Hobbes, Spinoza, Leibnitz. Herder gives qualified approval, while Fichte frankly throws down the glove as _The Prince's_ champion. 'Da man weiss dass politische Machtfragen nie, am wenigsten in einem verderbten Volke, mit den Mitteln der Moral zu lösen sind, so ist es unverständig das Buch von Fürsten zu verschreien. Macchiavelli hatte einen Herrscher zu schildern, keinen Klosterbruder.' The last sentence may at least be accepted as a last word by practical politicians. Ranke and Macaulay, and a host of competent Germans and Italians have lent their thought and pens to solve the riddle in the Florentine's favour. And lastly, the course of political events in Europe have seemed to many the final justification of the teaching of _The Prince_. The leaders of the Risorgimento thought that they found in letters, 'writ with a stiletto,' not only the inspirations of patriotism and the aspirations to unity, but a sure and trusted guide to the achievement. Germany recognised in the author a schoolmaster to lead them to unification, and a military instructor to teach them of an Armed People. Half Europe snatched at the principle of Nationality. For in _The Prince_, Machiavelli not only begat ideas but fertilised the ideas of others, and whatever the future estimation of the book may be, it stands, read or unread, as a most potent, if not as the dominant, factor in European politics for four hundred years. [Sidenote: The _Discorsi_.]