Universal suffrage was practical politics, but the success of the revolution fluttered agreeably all the mansions of Utopia, and social reformers of every type sought to improve the occasion. In the history of the political struggles of 1848 the names are written of Proudhon, of Victor Considerant the disciple of Fourier, of Pierre Leroux the humanitarian communist, and his devoted pupil George Sand. The chief title of Leroux to be remembered is just his influence over the soul of the great novelist. Her later romances are pervaded by ideas derived from his teaching. His communism was vague and ineffectual, but he was one of the minor forces in the thought of the period, and there are some features in his theory which deserve to be pointed out. Leroux had begun as a member of the Saint-Simonian school, but he diverged into a path of his own. He reinstated the ideal of equality which Saint-Simon rejected, and made the approach to that ideal the measure of Progress. The most significant process in history, he held, is the gradual breaking down of caste and class: the process is now approaching its completion; "today MAN is synonymous with EQUAL." In order to advance to the city of the future we must have a force and a lever. Man is the force, and the lever is the idea of Progress. It is supplied by the study of history which displays the improvement of our faculties, the increase of our power over nature, the possibility of organising society more efficaciously. But the force and the lever are not enough. A fulcrum is also required, and this is to be found in the "solidarity" of the human race. But this conception meant for Leroux something different from what is ordinarily meant by the phrase, a deeper and even mystical bond. Human "solidarity" was a corollary from the pantheistic religion of the Saint-Simonians, but with Leroux, as with Fourier, it was derived from the more difficult doctrine of palingenesis. We of this generation, he believed, are not merely the sons and descendants of past generations, we are the past generations themselves, which have come to birth again in us.