The document summarizes criticisms of behaviorism from several sources. Behaviorism is criticized for being too focused on conditioning and not accounting for internal mental states. While behaviorism was beneficial for research, Skinner's ideas contradicted some aspects of Darwinism, like the existence of free will. Skinner's theory also failed to explain language and memory acquisition in children. Additionally, behaviorism did not show that conditioning fully explained complex human behavior in the same way it explained animal behavior. Factors like mood, motivation, and individual differences are not accounted for.