Maslow's theory that human needs are arranged in a pyramid, with basic physiological and safety needs at the bottom, followed by love/belonging and esteem needs, and self-actualization at the top. Lower needs must generally be satisfied before higher needs become motivating.
Developed by Abraham Maslow in 1943, combining 'hierarchy' (from Greek 'hierarchia' meaning 'rule of a high priest') with 'needs.' Maslow was influenced by his observations of human motivation and his study of exemplary individuals who seemed to transcend basic survival concerns.
The hierarchy isn't as rigid as the pyramid suggests—people can pursue higher needs even when lower ones aren't fully met! Maslow later realized that needs can be satisfied simultaneously and that some people (like artists or activists) might pursue self-actualization despite lacking security or social approval.
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