Editiones Scholasticae, Germany
No realistic philosophy can be considered complete unless it includes a philosophy of nature. The philosophy of human nature is an area where most of the problems of the philosophy of nature occur, some of them in a crucial form. Moreover, the philosophy of human nature is an absolute prerequisite for a philosophically grounded ethics. Clearly, then, a knowledge of the philosophy of St. Thomas Aquinas requires a study of the philosophy of human nature.