三维空间和实践空间――兼论胡塞尔的“实践”概念

基于认识论的引导动机，胡塞尔将三维空间构造问题划分为两个层次：二维场域的构造和三维空间的构造。二维场域的构造和三维空间的构造从根本上都依赖于作为实践主体的身体活动的动感，由此三维空间的构造学说超出了认识论的境域；不同于封闭的三维空间，实践空间是主体的实践生活的开放的境域，它具有近距―远距的本质结构。实践空间最终指包含着家乡―异乡这种不变样式的生活世界；不仅空间构造问题的深入阐明必须引入实践概念，而且对超越论现象学的观念的合理阐明也必须借助实践概念。
Based on an epistemological motive，Husserl divided his theory of constitution of three-dimensionalspace into two levels：the constitution of two-dimensional field and three-dimensional space. Both，accordingto a further inquiry，depend fundamentally on kinesthesia，a constitutional function of bodily movement ofpractical subject. Thus the theory of three-dimensional space goes beyond the framework of epistemology；differing from the closed three-dimensional space，practice space is an open horizon in which people livepractically，and thus has an essential structure of closeness-distance. Practice space can be proved ultimatelyto be life-world which，as a universal horizon，contains an invariant style of a divorce from hometown andalien land（ Heimat und Fremde） . It is with the aid of the concept of practice that a thorough elucidation ofthe constitution of space and a reasonable explanation of the idea of transcendental phenomenology can beachieved