William Stern´s comprehensive system of thought, the critical personalism, "could well be of great value to contemporary scholars. In particular, the distinction between persons and things, on which all of critical personalism rests, can serve to refine our understanding of the nature and limits of contemporary work in fields as diverse as personality studies and cognitive neuroscience," James T. Lamiell remarks in his new monograph "William Stern (1871-1938): A Brief Introduction to His Life and Works."