What 4 assumptions are maslow's hierarchy of needs based on?

This is basically and excerpt from my college text book Theories of Personality (Feist & Feist, 6th edition) p.277 Maslow's hierarchy is actually based on 5 assumptions. 1. That the whole person, not any single part or function, is motivated. 2. Motivation is usually complex, meaning that a person's behavior may spring from several separate motives. 3. People are continually motivated by one need or another, meaning that when the bottom (physiological) tier is satisfied, they'll become aware of their need for safety and security. 4. All people are motivated by the same basic needs, regardless of culture, etc. 5. Needs can be arranged on a hierarchy. (Maslow, 1943, 1970)