Final answer:
Alfred Adler posited that inferiority feelings are a primary motivator of all behavior, as fundamental aspects of his psychology, diverging from Freud's perspectives on what drives human action.
Step-by-step explanation:
Alfred Adler believed that feelings of inferiority serve as a driving force in human behavior. He proposed this concept within the framework of his school of psychology, known as individual psychology.
Contrasting with Freud's focus on sexual and aggressive urges, Adler emphasized how we manage feelings of deficiency and strive for superiority. An inferiority complex, according to Adler, is a person's internalized sense of being less valuable in comparison to others or societal expectations.
This idea underlies Adler's belief that our overarching motivation in life is to achieve personal and communal betterment, facilitated by the successful navigation of social tasks about our work, social lives, and intimate relationships.