當代哲學家紀傑克以他對於政治與文化現象的拉岡式解讀而聞名，但他哲學中的核心母題是什麼？對紀傑克而言，哲學不是使人「安然棲身」的論述，而是跟陌生感與他異性更緊密相關。所以，在紀傑克的眼中，哲學家的工作，不在於提供具體的解決方案，而是在於「新問題的創造」，重塑爭論的框架本身。 　　這篇研究中，筆者使用「系統與他者」這組概念，來彰顯紀傑克的兩大核心母題，其一，便是在有限性的範圍之內主張的自由，其二，則是他對新穎與變化的追索。「他者」使得系統能夠不斷重新定向，並向根本的變化保持開放。 　　「脫節狀態」是紀傑克用以描述主體之基本自由的概念。主體活動不被自然或文化的任一方決定；於是，所有主體所作的系統整合，都是一種與他者建立暫態平衡的嘗試，而所有用以整合的意指活動，都是一種對於他異性的回應，一種安身立命的奠基姿態。 　　簡言之，所謂「象徵界與實在界的不協調性」，在紀傑克的術語中不是消極的意涵，而是積極的意涵：它使得意義建構得以開始，並且是人類自由的根源。透過「系統」與「他者」的互動，思想總是有能力重新定向，藉此維持其鮮活與彈性，而這正是紀傑克式主體在現今政治情境中所致力實現的。 / Contemporary philosopher Slavoj Žižek is well-known for his Lacanian reading on political and cultural phenomena, but what is the central motif of his philosophy? For Žižek, philosophy is not some discourse to make people feel “being at home”, but rather something more related to foreignness and otherness. In Žižek’s eyes, What a philosopher really does is not providing substantial solutions, but rather “inventing new problems”, reshaping the framework of argumentation itself. 　　In this thesis, ”System and other” is the term I introduce to thematize two central motifs in Žižek’s philosophy: the first motif is his tireless assertion of freedom within the realm of finitude, and the second one is his relentless seeking for innovations and changes. “Other” is what enables the system to continuously re-orientate itself, and keep the system open to fundamental changes. 　　Žižek uses “Out-of-jointedness” to describe the fundamental freedom of the subject, neither nature nor culture can determine the subject. Every system organized by the subject is an attempt to create a transient balance with the other, and every totalizing signification is s a response to the otherness, the founding gesture of situating the subject itself into a meaningful context. 　　To sum up, Žižek does not use “Inconsistency between the Symbolic and the Real” as a negative term, but rather a positive term, it is the very starting point of meaning construction, and the ground for human freedom. Through the interaction between ”system and other”, the thought is always ready for re-orientation, therefore the thought is kept alive and flexible, and this is exactly what a Žižekian subject wants to accomplish in the present political situations.