Errors to be successful must be big and bold. Fallacies of reasoning are detected on a medium scale, but when they are "writ large" it is difficult to detect them. Trains of syllogisms are sometimes more effective because they are vast than because they are true. Let them be imposing in their language and grand in their proportions, we naturally bow down to power, even if it is only power of largeness. When dealing with Mr. Spencer's reasonings we feel a certain awe as if we were contradicting the forces of the universe--seemingly allied to him. We feel conscious of an impertinence in treating of such great matters, dealt with in such a mighty sweep--disdainful of precision and consistency. The transformations and evolutions of reasoning in Mr. Spencer's works are no less wonderful than his treatment of words. The mind is swept along by an indiscernable but mighty flow, and sometimes after mysterious disappearances of consecutiveness between volumes or chapters, we find ourselves landed in a satisfied but bewildered manner at a conclusion about which we cannot but wonder however we arrived there. By such terms as equilibration, including the theory of the moving equilibrium; by such terms as polarity plastic and coercive; and by plausible similarities between modes of process, we are deluded into supposing we understand the constructive progress of nature and are made to feel happy and proud of our knowledge. A great self satisfaction attends the student who believes himself rightly to understand the universe. We are pleased with our teacher, and are still more pleased with ourselves.