3. The Middle Ages: Church and State THE FUNDAMENTAL PRINCIPLE OF POWER. CHRISTIANITY AND THE STATE. PAPISM. AUGUSTINE'S CITY OF GOD. THE HOLY CHURCH. THE STRUGGLE FOR WORLD DOMINION. GREGORY VII, INNOCENT III. THE EFFECT OF POWER ON ITS POSSESSORS. ROME AND THE GERMANS. GERMANIC CAESARISM. THE STRUGGLE FOR ROME. THE FOREIGN DOMINION. THE SUBMERSION OF OLD SOCIAL INSTITUTIONS. ARISTOCRACY AND ROYALTY. FEUDALISM AND SERFDOM. THE FRANKISH EMPIRE. CHARLEMAGNE AND THE PAPACY. STRUGGLE BETWEEN EMPEROR AND POPE. EVERY power is animated by the wish to be the only power, because in the nature of its being it deems itself absolute and consequently opposes any bar which reminds it of the limits of its influence. Power is active consciousness of authority. Like God, it cannot endure any other God beside it. This is the reason why a struggle for hegemony immediately breaks out as soon as different power groups appear together or have...