But if this is true, it is also to be remembered that the philosopher is, like other men, the son of his age, and estimates the value of reality from preconceptions and aspirations due to his generation. The historical circumstances of his nation as well as the personal experiences of his life help to determine his horizon, even in the effort to discover the hidden pulse and movement of the social organism. This is specially obvious in political philosophy. The conception of ethics and politics which is presented in the _Encyclopaedia_ was in 1820 produced with more detail as the _Grundlinien der Philosophie des Rechts_. Appearing, as it did, two years after his appointment to a professorship at Berlin, and in the midst of a political struggle between the various revolutionary and conservative powers and parties of Germany, the book became, and long remained, a target for embittered criticism. The so-called War of Liberation or national movement to shake off the French yoke was due to a coalition of parties, and had naturally been in part supported by tendencies and aims which went far beyond the ostensive purpose either of leaders or of combatants. Aspirations after a freer state were entwined with radical and socialistic designs to reform the political hierarchy of the Fatherland: high ideals and low vulgarities were closely intermixed: and the noble enthusiasm of youth was occasionally played on by criminal and anarchic intriguers. In a strong and wise and united Germany some of these schemes might have been tolerated. But strength, wisdom, and unity were absent. In the existing tension between Austria and Prussia for the leadership, in the ill-adapted and effete constitutions of the several principalities which were yet expected to realise the advance which had taken place in society and ideas during the last thirty years, the outlook on every hand seemed darker and more threatening than it might have otherwise done. Governments, which had lost touch with their peoples, suspected conspiracy and treason: and a party in the nation credited their rulers with gratuitous designs against private liberty and rights. There was a vast but ill-defined enthusiasm in the breasts of the younger world, and it was shared by many of their teachers. It seemed to their immense aspirations that the war of liberation had failed of its true object and left things much as they were. The volunteers had not fought for the political systems of Austria or Prussia, or for the three-and-thirty princes of Germany: but for ideas, vague, beautiful, stimulating. To such a mood the continuance of the old system was felt as a cruel deception and a reaction. The governments on their part had not realised the full importance of the spirit that had been aroused, and could not at a moment's notice set their house in order, even had there been a clearer outlook for reform than was offered. They too had suffered, and had realised their insecurity: and were hardly in a mood to open their gates to the enemy.