4 Sigmund Freud
- Full name: Sigismund Schlomo Freud
- Born: 6 May 1856
- Died: 23 September 1939 (aged 83)
- Nationality: Austrian
- What Sigmund Freud was known for: What list of psychologists would be complete without Sigmund Freud’s name? Freud may be somewhat mocked today for his apparent preoccupation with sex, but his theories of psychoanalysis were extremely influential on the field.
A certain degree of neurosis is of inestimable value as a drive, especially to a psychologist. -Sigmund Freud