With the Revolution of 1848 "educated" Germany delivered the challenge to theory and proceeded to action. Hand-labor dependent upon small production and manufacture was done away with by the great industry--Germany again appeared in the world-market. The new particularistic Germany, at all events did away with the most crying anomalies, which the rule of the petty states, the remnants of feudalism and the bureaucratic economy, had placed in the way of their development, but just in proportion as speculation abandoned the studies of philosophers to attain its temple in the Bourse, that great theoretic thought which had been the glory of Germany in the period of its deepest political humiliation, the zeal for pure scientific progress, irrespective of practical, profitable results, and of the disapproval of the police, became lost in educated Germany. It is true that the German official natural science maintained its position, particularly in the field of individual discovery, at the head of its time, but now the American journal "Science" justly remarks that the decisive advances in the matter of the broadest inclusive statement of the relations between single facts, and the harmonising of them with law, are making the greater headway in England, instead of, as earlier, in Germany. And with regard to the sciences of history, philosophy included, with the classical philosophy, the old theoretical spirit, with its carelessness of personal results, first completely disappeared. Thoughtless eclecticism, eager backward glances at a career, and income down to the meanest sycophancy occupy their places. The official representatives of this sort of science have become the open ideologists of the bourgeoisie and the existing state, but at a time when they both stand in open antagonism to the working classes. Only among the working classes does the German devotion to abstract thought steadily continue to exist. Here it cannot be got rid of. Here we find no backward glances at a career, at profit making, at kindly protection from the upper classes, but on the contrary the more independent and unrestricted the path of science, just so much the more does it find itself in accord with the interests and endeavors of the working class. The new tendency, which in the history of the development of labor made known the key to the understanding of the universal history of society addressed itself in the first place to the working class and found in them the ready acceptance which it neither sought nor expected from official science. The German working-class movement is the heir of the German classical philosophy. FOOTNOTE: