This essay is based on the dissertation delivered by the author upon his appointing as Honorary Professor of the University of Piura, in which he make a comparative analysis between the law’s characteristic knowledge and teaching in the European continental and in the Anglo-American traditions. Since the origin of the European universities, lawyer’s training was founded in the possibility of a rational, etiological, critical and systematic knowledge of the human being and his social requirements, and therefore of the law as well, getting to generate, along the centuries, and, with a particular development since the nineteenth century, in the European continental area, a solid law science, with mature achievements, largely spread all over the world, although it has also had to overcome no few failures, some among them with disastrous social results, and indeed its progress has no...