English: A pyramid diagram of Maslow's Hierarchy of Needs (original five-level model), based on his 1943 paper "A Theory of Human Motivation" and later clarifications.

From bottom to top: Level 1 (red): Physiological needs including air, water, food, shelter, clothing, sleep, reproduction. Level 2 (orange): Safety needs like personal security, financial security, health, stable environment. Level 3 (yellow): Love and belonging, encompassing family, friendships, relationships, community, affection. Level 4 (green): Esteem, involving self-respect, confidence, respect from others, achievement, reputation.

Level 5 (blue): Self-actualization, featuring creativity, personal growth, moral development, pursuit of meaning, peak experiences.