Alfred Adler believed that psychopathology results from a person's:

feelings of inferiority and inability to overcome challenges and achieve their goals.

According to Alfred Adler, a renowned psychologist and founder of individual psychology, psychopathology results from a person's feelings of inferiority. Adler placed great emphasis on the importance of understanding an individual's subjective experience and their unique perception of themselves in relation to the world around them. He believed that psychopathology, including various mental disorders and emotional difficulties, arises from a person's deep-seated feelings of inferiority or inadequacy. Adler theorized that individuals with psychopathology often develop maladaptive coping mechanisms and adopt unhealthy strategies to compensate for these feelings of inferiority.