Sigmund Freud (1856-1939) revolutionized the way in which we think about ourselves. From its beginnings as a theory of neurosis, Freud developed psycho-analysis into a general psychology, which became widely accepted as the predominant mode of discussing personality and interpersonal relationships.

Sigmund Freud (1856-1939) revolutionized the way in which we think about ourselves. From its beginnings as a theory of neurosis, Freud developed psycho-analysis into a general psychology, which became widely accepted as the predominant mode of discussing personality and interpersonal relationships.