In psychoanalytic literature, a Madonna–whore complex is the inability to maintain sexual arousal within a committed, loving relationship. First identified by Sigmund Freud, this psychological complex is said to develop in men who see women as either saintly Madonnas or debased prostitutes. Men with this complex desire a sexual partner who has been degraded (the whore) while they cannot desire the respected partner (the Madonna). Freud wrote: “Where such men love they have no desire and where they desire they cannot love.” Clinical psychologist Uwe Hartmann, writing in 2009, stated that the complex “is still highly prevalent in today’s patients”.