Abstract Dan Brown, an American thriller fiction author, is best known for the 2003 bestselling novel The Da Vinci Code. His novels are treasure hunts set in a 24-hour period, and feature the recurring themes of cryptography, keys, symbols, codes, and conspiracy theories. Dan Brown’s characters, whether evil or not, are always full of toughness and marked with a positive spirit. 

The Lost Symbol, the latest stunning follow-up to The Da Vinci Code, again presents a decoding novel, a deadly race through a real-world labyrinth of codes, secrets, and unseen truths. With elements of religion, science, and symbols, it exposes to readers the essence of human nature. On the one hand, it shows the cruelty of humanity. On the other, it demonstrates the warmth of humanity. Seemingly absurd in plot, the novel revolves around a game of human nature.68797

Aimed at analyzing the game of human nature, this paper probes into the personality and behavior differences between the protagonist, villain and other characters when they are faced with tough choices. The entire essay can be pided into three parts, a study of game theory, the game of human nature , and the connotations reflected in human nature. Through the approach of making detailed textual analysis, the thesis comes to a conclusion that one’s internal struggle between good and evil cannot be avoided. When the negative side of character withdraws, human nature begins to sublimate.

Key word: The Lost Symbol, Game Theory, The Game of Human Nature, Humanity

摘要丹·布朗，美国惊悚小说作家，以2003年畅销小说《达芬奇密码》而闻名。他的小说以24小时内寻找宝藏为背景，并以密码学、钥匙、符号、密码和阴谋论等反复出现的主题为特色。丹·布朗笔下的人物，无论邪恶与否，都充满了坚强和积极的精神。

《失落的符号》是继《达芬奇密码》之后又一令人震惊的作品。他再次呈现了一篇解码小说，这本书讲述了一个在现实世界中错综复杂的密码、秘密和不可见的真理的故事。通过宗教、科学和符号的元素，向读者揭示了人性的本质。一方面，它展示了人性的残忍。另一方面，它展示了人性的温暖。这部小说在情节上似乎是荒谬的，围绕着一场人性的博弈。

本文针对通过对人性博弈的分析，探讨了在面对艰难抉择时，主人公、反派以及其他角色之间的个性和行为差异。整篇文章可分为三个部分:博弈论的研究、人性的博弈以及人性的内涵。通过详细的文本分析，得出结论:善与恶之间的内在斗争是不可避免的。当性格消极的一面退却时，人性就开始升华。

毕业论文关键词: 《失落的密符》， 博弈论，人性博弈， 人性

CONTENTS

Acknowledgements......i

Abstract......... ii

摘要...... iii

1 Introduction..... 1 

2 A General Study of Game Theory.. 5

2.1 The Definition of Game Theory ..... 5

2.2 The Development of Game Theory 6

2.2 The Main Types of Game Theory ... 6

3 A General Study of Human Nature . 7

3.1 3.1 The Definition of Human Nature..... 7

3.2 Different Approches and Studys on Human Nature 8

3.3 Game Theory in Human Nature..  11

4 The Game of Human Nature in The Lost Symbol. 13   

4.1 The Game between Freedom and oppression...