What do we know about human differences? Between different human groups?
我们怎么知道不同群体之间，有什么差异呢？
The great controversies: nature and nurture, free will, consciousness, human differences, self and society.
最大的争议：先天与后天、自由意志、意识、人类个体差异、自我与社会。
The great controversies: nature and nurture, free will, consciousness, human differences, self and society.
最大的争议：先天与后天、自由意志、意识、人类个体差异、自我与社会。
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