In this way Say broke with the long tradition which, stretching from the days of the Canonists and the Cameralists to those of the Mercantilists and the Physiocrats, had treated political economy as a practical art and a guide for statesmen and administrators. Smith had already tried to approach economic phenomena as a scientist, but there was always something of the reformer in his attitude. Say’s only desire was to be a mere student; the healing art had no attraction for him, and so he inaugurates the true scientific method. He, moreover, instituted a comparison between this science and physics rather than between it and natural history, and in this respect also he differed from Smith, for whom the social body was essentially a living thing. Without actually employing the term “social physics,” he continually suggests it by his repeated comparison with Newtonian physics. The principles of the science, like the laws of physics, are not the work of men. They are derived from the very nature of things. They are not established; they are discovered. They govern even legislators and princes, and one never violates them with impunity.[265] Like the laws of gravity, they are not confined within the frontiers of any one country, and the limits of State administration, which are all-important for the student of politics, are mere accidents for the economist.[266] Political economy is accordingly based on the model of an exact science, with laws that are universal. Like physics, it is not so much concerned with the accumulation of particular facts as with the formulation of a few general principles from which a chain of consequences of greater or smaller length may be drawn according to circumstances. A delight in uniformity,[267] love of universality, and contempt for isolated facts, these are the marks of the savant. But the same qualities in men of less breadth of view may easily become deformed and result in faults of indifference or of dogmatism, or even contempt for all facts. And are these very faults not produced by the stress which he lays upon these principles? Was not political economy placed in a vulnerable position for the attacks of Sismondi, of List, of the Historical school, and of the Christian Socialists by this very work of Say? In his radical separation of politics and economics, in avoiding the “practical” leanings of Adam Smith, he has succeeded in giving the science a greater degree of harmony. But it also acquired a certain frigidity which his less gifted successors have mistaken for banality or crudity. Rightly or wrongly, the responsibility is ascribed to Say.