What belongs to nature cannot be the result of human activities and on the other hand, cultural development is achieved againstnature.
属于自然的东西不可能是人类活动的结果，另一方面，文化的发展却是在违背自然的情况下实现的。
3
Studies in the development of humans suggest that culture, whether taken as an effort againstnature or a natural effort, is part of the development of the human species.