This paper offers a concise history of Freud's thinking and attitudes concerning religion, a discussion of the problems inherent in these views, and a critical reappraisal. Freud diagnosed religion itself as pathological. The author traces this theme through a number of Freud's writings, in which Freud compared religion to neurosis, psychosis, and infantilism. He seems to demonstrate that Freud's views were influenced by emotional factors. He mentions Freud's ambivalent relationship with his father, with Judaism, and eventually with his psychoanalytic colleagues. In his critique of Freud's position, Wallace cites Freud's failure to include institutional, adaptive, and historical factors in his views. He concludes that psychoanalysis became for Freud a "positive community" which had to ignore other "positive communities" such as organized religion.