Positive psychology constitutes at present the largest growth industry in psychology. However, its academic terrain – as well as that of its most recent incarnation as positive education – is a hotly debated one. Positive psychology purports to draw upon an array of historical and philosophical sources, ranging from Aristotle and the Stoics to utilitarianism and existentialism. Some theorists consider this to be an example of laudable ecumenism. Others think of it more in terms of an eclectic mixture of ill-assorted elements and complain that too many cooks spoil the broth.