In his presentation Krapf does not necessarily follow the doctrines of any school, nor does he offer a textbook, but rather an outline to be used in preparation for an examination. Describing himself as a disciple of Aristotle and of Thomas Aquinas, he believes that the basic position of Freud was not positivism but an anti-Cartesian humanism which serves well as the central core of a universalistic conception of man, assigning to their proper places the cerebral apparatus, the instincts, and the specific 'spiritual' energy of the ego. Within the framework of this clear, simple, and modestly stated philosophy, Krapf describes, in Part 1, Personology; in Part 2, the Principles of General Psychiatry.