Maslow Hierarchy of needs
Level 1 (Physiological) - breathing, food, water, sex, sleep - basic needs
Level 2 (Safety) - security of body and employment, health, family
Level 3 (Love/belonging) - friendship, intimacy, family
Level 4 (Esteem) - self esteem, confidence, achievement
Level 5 (Self actualisation) - creativity, problem solving, morality