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The pleasure principle is a psychological concept that describes the instinctual drive to seek immediate satisfaction of desires and relief from discomfort. In Freudian psychoanalytic theory, the id, the most primitive part of the personality, operates entirely according to the pleasure-pain principle. This means the id seeks immediate fulfillment of its impulses, whether they are related to sex, aggression, or other basic instincts.12

Psychological hedonism is a related philosophical view suggesting that all human actions are ultimately motivated by the pursuit of pleasure and the avoidance of pain. While the pleasure principle focuses on the drive for immediate gratification, psychological hedonism posits this as the fundamental driver of all human behavior.32

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