But things changed when Maimonides’ death freed the zealots from the restraint of fear. A fierce conflict broke out about him, and raged for a hundred years. The religious leaders, long accustomed to ban every book that did not suit their views, could not possess their souls in silence when they saw, for the first time in Jewish history, that revolutionary books like the _Guide_ and the _Book of Science_ were spread abroad without let or hindrance, and were more popular and more esteemed by the people at large than almost any of the other books which the teachers and sages of Israel had placed in the treasury of Judaism.[148] The details of this conflict are familiar to scholars, and it is not my intention here to write the history of that period. But it is worth pointing out that most of Maimonides’ opponents at that time did not recognise clearly the fundamental change which he had introduced into Judaism. No doubt they all felt that his teaching meant a complete revolution in the national outlook; but they did not all understand what was the pivotal issue of the revolution. For the most part they merely pointed to certain details in which they found heresy, such as the denial of resurrection, of hell and paradise, and so forth. Only a few of them understood that Maimonides’ teaching was revolutionary not because of his attitude on this or that particular question, but because he dethroned religion altogether from the supreme judgment-seat, and put reason in its place: because he made it his basic principle that “whenever a Scripture is contradicted by proof we do not accept the Scripture,” but _explain_ it in accordance with reason.[149] This emancipation of reason from its subordination to an external authority is the great and eternal achievement which has so endeared Maimonides to all those of our people who have striven after knowledge and the light. The theoretical system at which Maimonides worked so hard from his youth to the end of his life has long been swept away, together with the Arabic metaphysics on which it was based. But the practical consequence of that system—the emancipation of reason—remains, and has left its mark on the history of Jewish thought up to the present day. Every Jew who has left the old school and traversed the hard and bitter road that leads from blind faith to free reason must have met with Maimonides at the beginning of his journey, and must have found in him a source of strength and support for his first steps, which are the hardest and the most dangerous. This road was traversed not only by Mendelssohn, but also by Spinoza,[150] and before and after them by countless thinkers, many of whom won golden reputations within Judaism or outside it.