Complex sentence: Max Scheler, a German phenomenologist, is known for his highly developed philosophical anthropology which defines the human being not so much as a "rational animal" (as has traditionally been the case since Aristotle) but essentially as a loving being.
Split into simpler sentences: Max Scheler, a German phenomenologist, is known for his highly developed philosophical anthropology. Scheler defined the human being not so much as a "rational animal" (as has traditionally been the case since Aristotle) but essentially as a loving being.