The science of constructing a commonwealth, or renovating it, or reforming it, is, like every other experimental science, not to be taught a priori. Nor is it a short experience that can instruct us in that practical science, because the real effects of moral causes are not always immediate.
Political society wants things simple. Political scientists know them to be complex. . . One could argue that, in part, the leftist impulse is so conspicuous among the educated and well-to-do precisely because they are exposed to more information, and are accordingly forced to choose between living with the strains of complexity, or lapsing into simplism.