男女之間的事情不一定就是「兩性關係」。「兩性關係」的想法並非古今中外皆然的想法，其有效性只限於近現代的西方社會，以及受到西潮影響的局部當代非西方社會，其是留學生和大學生群體。「兩性關係」觀念關鍵有三：一是普同的人類觀，不分性別、年齡與種族，皆視為人，皆享人權；二是以「性」為人在肉體上之天賦屬性，是可以與文化分離的；三是視「性別」觀念為人為的文化規範，認為不應該在其上建立不平等的群類關係。談「兩性關係」者，其實均為平權主義者。一方面，他們維護「性別」之群類劃分方式；另一方面，他們要求兩種性別群類同享人權，不受劃分方式之影響。此種以二分法和超越論為基礎的思考方式，與中國傳統的乾坤陰陽思考方式頗不相同，也與古希臘以美少男戀為主的格局差異甚大。在後現代的資訊社會裡，連群類分界也十分模糊流動，恐怕亦不必再談甚麼「兩性關係」了。總之，「性」與「性別」乃是虛構的概念，只對那些習慣於徵用它們來過生活的人才有效。

　　　　　The Relationship between Man and Woman is not Necessarily 'Sexes Relat ionship.' The Conception of 'Sexes Relationship' is not Universally Applicable. It Can be Applied Only in the Modern Western World and in those Parts of the Non-Western Areas Deeply Westernized, Especially Among those Students Who Have Studied in Western Countries and those Domestic Intellectuals Who are Influenced by Western thoughts. There are Three Basic Points in the Conception of 'Sexes Relationship': 1）a Universal Idea of 'Human Right' Which Demands That Nobody Should be Deprived of His Right of being Treated as Human Merely Due to His Gender, Age, Class or Ethnicity; 2）Taking 'Sex' as the Natural Endowment in Relation to Human Corporeality, which Can be Analytically Separated from the Cultural Part of Humanity; 3）Insistence on the Cultural-Normative Character of the Concept of 'Gender' as to not Allow any Unequal Terms be Enacted between Sex Classes. Those People Who Like to Talk about 'Sexes Relationship' are in Fact Equalitarians, using Bifurcational thinking and Transcendentalism as Their Fundamental Mode of thinking, though They are not all Really Conscious of That and in the Same Sense being so. Nevertheless, This Mode of thinking is not Commensurable with What Traditional Chinese Called 'Yin-Yang' and 'Ch'ien-Kuen,' which was Taken as a General Explanation of 'Man-Woman' Relationship and Often Interchangeable one another. In Addition, Even within the Western World, This Mode of thinking is also Different from That which Was Available in the Ancient Period, Focusing on Pederasty, and That which is No More Influential within the Current of the So-Called 'Postmodernism,' Relating 'Sex' and 'Gender' Merely as Signs of Simulacrum. In a Word, 'Sex' and 'Gender' are Merely Fictional Concepts, Available and Applicable Only in the Minds of those Who used to and Will to use Them.