Physiological needs: people's needs for food, water, air, sleep, sex and so on.
Features: The most basic, primitive and powerful demand is the basis of all other needs.
2. Security needs: refers to the need to be free from threats and gain a sense of security.
Characteristics: When the physiological needs are relatively satisfied, there will be security needs.
3. Need for belonging and love: Everyone has the need to be accepted, cared for, cared for, encouraged and supported by others or groups.
Features: recognition and acceptance, higher-level needs after the physiological and safety needs are met.
4. Respect for needs: it is the need to pursue their own social values after the needs of physiology, safety, belonging and love are basically met.
Features: Self-esteem and respect.
5. Knowledge need: refers to the individual's need to explore, understand and explain difficult problems about himself and the world around him.
Features: tools to overcome obstacles, cognition and understanding.
6. Aesthetic demand: refers to the demand for symmetry, order, complete structure and perfect behavior.
Features: interrelated with other needs, inseparable; sense of beauty
7. The need for self-realization: it is the psychological need to give full play to one's own potential and talents, and it is also the need to create and embody self-value.
Features: The highest-level demand is generated after the previous demand is met.