The differences between the human brain and the body make people s needs to show diversities and foresights and have the contradictions between the needs and the ability of self-realization.

• 人脑与人的肢体的差异以及进化的不同步性,使人类在自身过程中出现了这样一对矛盾:需求多样性、前瞻性与人自我靠肢体能力实现其需求之间不同步;工具与社会的产生是人类计算的结果。