馬里伏探索與檢視人心情感的真理從未停歇。為了能抓住這個真理，他透過作品，呈現各種阻礙人認識自我的謊言。本論文主要針對馬里伏劇作中一種特殊的謊言進行研究：錯信。錯信的特殊性在於它具有結合真誠與謊言的曖昧性。而這項特質讓我們難以對它定義與掌握。這也是本論文多次引用沙特對於錯信的理論性分析的主因。事實上，沙特是第一位針對錯信行為的特色、運作機制與矛盾進行深入分析的哲學家。論文的主要目標在於對錯信在馬里伏劇作中的呈現進行研究。為了說明錯信在馬里伏劇作中的眾多表現情境，論文的研究將集中於愛情關係的面向。此外，本文對於錯信論述的研究，同時也提供理解馬里伏式風格語言的另一種觀點。總之，若這項研究的主要目的在於了解馬里伏的人物為何與如何能夠欺騙自我，它也讓我們看到，對馬里伏而言，即便到劇情終了，錯信所引發的問題從未得到真正的解決之道。

Marivaux never stops exploring and examining the truth of the human heart. To grasp this truth, through his works, he presents many different kinds of lies that prevent self-knowledge. This article proposes to study a special form of lying in Marivaux's plays: bad faith. The peculiarity of bad faith lies in its ambiguity – a mixture of sincerity and lies – which makes it difficult to define and grasp. This is the main reason why this paper refers often to Jean-Paul Sartre's theoretical analysis of bad faith. In fact, Sartre was the first philosopher to conduct an in-depth analysis of the characteristics, mechanisms and contradictions of bad faith. The main objective of this thesis is to study the presentation of bad faith in several of Marivaux's plays. To illustrate the numerous representations of bad faith in this theater, we focus on the aspect of love relationships. Moreover, by studying the discourse of bad faith, this article also provides an alternative perspective on the comprehension of marivaudage. Finally, if the main purpose of this research is to understand why and how Marivaux's characters can deceive themselves, we also want to show that for Marivaux, even until the end of the play, the problems caused by bad faith have never been truly solved