In Comte’s system the constitution of sociology may be considered at the same time as a terminus and as a starting point. One sees the positive method attaining with it to the order of the highest, the most “noble,” the most complicated phenomena: in this sense sociology is the term reached by the positive spirit in its ascent. It thus reaches the summit of the hierarchy of the sciences, and henceforth rules over them all. On the other hand, positive philosophy, possible from this moment, will make this a starting point for establishing the principles of morality and of polity.