德勒茲（Gilles Deleuze）哲學中存在一種殊為特異（singulier）的點、線與平面關係，或者不如說是它們之間的「非關係」（non-rapport）。作為一種差異哲學，思考對德勒茲而言意味著（特異）點的尋覓與獵捕以及將複數特異點置入一種變態、脫軌與錯亂的溝通之中。本文將嘗試探究德勒茲哲學中的這個思想最小單位，一道介於兩特異點間的抽象之線。抽象之線不由兩點所界定，它不是由兩點所連成的線，相反的，抽象之線的闖入重新特性化這兩點，它是由域外之力所褶皺、曲扭的兩點間拓樸關係。 思想穿越於兩點之間，但卻又必然是這兩點間的非關係與非思想，這便是德勒茲所提供的思想一般拓樸學。

There is a particular relation, or we may say a non-relation (“non-rapport”), between point, line and plane in Gilles Deleuze’s philosophy. As a philosophy of difference, thinking signifies for Deleuze the search for and seizure of (singular) points and the placement of plural singular points into an abnormal, aberrant and chaotic communication. This essay attempts to explore the minimal unit of thought in Gilles Deleuze’s philosophy: an abstract line between two singular points. The abstract line is not defined by the two points; it is not a line linking two points. On the contrary, the intervention of the abstract line characterizes anew the two points. It is a topological relation between two points which is folded and twisted by force from the outside. Thinking runs across two points, but it must be the non-relation and the non-thinking between the two points. This is exactly the general topology of thinking conceived by Gilles Deleuze.