While he felt the dangers of Rousseau's doctrine of equality, declaring that in the end it would be destructive alike of liberty and religion, he was yet strongly imbued with the need of reconciling some of the socialists' ideals with the regard due to the principles which he respected. He was anxious to promote the study of Roscher and the historical economists, and he seems to have thought that by their means some solution of the great economic evils of the modern world might be found, which should avoid injustice either to the capitalist or the wage-earner. He had a burning hatred of injustice and tyranny, which made him anxious to see the horrors of the modern proletariat system mitigated and destroyed; but combined with this there was a very deep sense of the need of acting on principles universally valid, and a distrust of any merely emotional enthusiasm which might, in the future, create more evils than it cured. Acton was, in truth, the incarnation of the "spirit of Whiggism," although in a very different sense of the phrase from that in which it became the target for the arrows of Disraeli's scorn and his mockery of the Venetian constitution. He was not the Conservative Whig of the "glorious revolution," for to him the memory of William of Orange might be immortal but was certainly not pious: yet it was "revolution principles" of which he said that they were the great gift of England to the world. By this he meant the real principles by which the events of 1688 could be philosophically justified, when purged of all their vulgar and interested associations, raised above their connection with a territorial oligarchy, and based on reasoned and universal ideals. Acton's liberalism was above all things historical, and rested on a consciousness of the past. He knew very well that the roots of modern constitutionalism were mediaeval, and declared that it was the stolid conservatism of the English character, which had alone enabled it to preserve what other nations had lost in the passion for autocracy that characterised the men of the Renaissance and the Reformation. Constitutional government was for him the sole eternal truth in politics, the rare but the only guardian of freedom. He loved to trace the growth of the principle of power limiting itself and law triumphant alike over king, aristocracies, and majorities; and to show how it arose out of the cruel conflicts of the religious wars and rested upon the achievements of Constance and the efforts of Basle, and how it was influenced in expression by the thinkers of the ancient world and the theologians of the modern, by the politics of Aristotle, by the maxims of Ulpian and of Gaius, by the theology of St. Thomas and Ockham, and even by Suarez and Molina.