There is no doubt that there is an increasing, and for us jurists, a not unimportant demand for the study of psychology in its bearing on our profession. But it must be served. The spirited Abbé de Baëts, said at a meeting of criminalists in Brussels, that the _present tendency of the science of criminal law demands the observation of the facts of the daily life_. In this observation consists the alpha and omega of our work; we can perform it only with the flux of sensory appearances, and the law which determines this flux, and according to which the appearances come, is the law of causation. But we are nowhere so neglectful of causation as in the deeds of mankind. A knowledge of that region only psychology can give us. Hence, to become conversant with psychological principles, is the obvious duty of that conscientiousness which must hold first place among the forces that conserve the state. It is a fact that there has been in this matter much delinquency and much neglect. If, then, we were compelled to endure some bitterness on account of it, let it be remembered that it was always directed upon the fact that we insisted on studying our statutes and their commentaries, fearfully excluding every other discipline that might have assisted us, and have imported vitality into our profession. It was Gneist[34] who complained: “The contemporary low stage of legal education is to be explained like much else by that historical continuity which plays the foremost rôle in the administration of justice.” Menger[35] does not mention “historical continuity” so plainly, but he points sternly enough to the legal sciences as the most backward of all disciplines that were in contact with contemporary tendencies. That these accusations are justified we must admit, when we consider what Stölzel[36] and the genial creator of modern civil teaching demands: “It must be recognized that jurisprudence in reality is nothing but the thesis of the healthy human understanding in matters of law.” But what the “healthy human mind” requires we can no longer discover from our statutory paragraphs only. How shameful it is for us, when Goldschmidt[37] openly narrates how a famous scientist exclaimed to a student in his laboratory: “What do you want here? You know nothing, you understand nothing, you do nothing,--you had better become a lawyer.”