4. Man and His Becoming.

whereas the others were neglected or forgotten, this distinction has taken on an exaggerated importance by reason of the 'mind-matter' dualism that has for various reasons prevailed in the philosophical tendencies of the entire modern West.^[5] As we have already indicated, it is principally to Descartes that one must trace the origin of and the responsibility for this dualism, although it must also be recognized that his concepts owed their success to the fact that they were in effect only the systematization of pre-existing tendencies, the very tendencies that are properly characteristic of the modern spirit (cf. The Crisis of the Modern World, chap. 4).