| ACKNOWLEDGEMENTS | 第8-11页 |
| ABSTRACT | 第11页 |
| 摘要 | 第12-13页 |
| CHAPTER Ⅰ INTRODUCTION | 第13-19页 |
| 1.1 Literature Review | 第14-17页 |
| 1.2 Purpose and Significance of the Thesis | 第17-18页 |
| 1.3 Methodology and Structure of the Thesis | 第18-19页 |
| CHAPTER Ⅱ BRIEF HISTORY OF VEGETARIANISM IN THE WEST | 第19-26页 |
| 2.1 Vegetarianism in Classical Period | 第19-20页 |
| 2.2 Vegetarianism in Medieval Period | 第20-21页 |
| 2.3 Vegetarianism in Modern Period | 第21-23页 |
| 2.4 Vegetarianism in Contemporary period | 第23-26页 |
| CHAPTER Ⅲ ETHICAL VEGETARIANISM | 第26-41页 |
| 3.1 Pythagoras, Porphyry, and Saint Francis: Ancient Vegetarianism | 第26-28页 |
| 3.2 Alcott, Thoreau, Salt, Singer: Modern Vegetarianism | 第28-41页 |
| 3.2.1 William A. Alcott’s Vegetarianism | 第29-31页 |
| 3.2.2 Henry D. Thoreau’s Philosophical Vegetarianism | 第31-33页 |
| 3.2.3 Henry S. Salt’s Humane Vegetarianism | 第33-37页 |
| 3.2.4 Moral Concern in Peter Singer’s Animal Liberation | 第37-41页 |
| CHPATER Ⅳ ENVIRONMENTAL AND HEALTH CONCERNS IN VEGETARIANISM | 第41-57页 |
| 4.1 Environmental Concerns | 第41-44页 |
| 4.1.1 Environmental Concern in The Junge | 第42页 |
| 4.1.2 Environmental Concern in Animal Liberation | 第42-44页 |
| 4.2 Health Concerns | 第44-57页 |
| 4.2.1 Health Concerns in Animal Liberation | 第45-46页 |
| 4.2.2 Health Concern in The China Study | 第46-57页 |
| 4.2.2.1 Criticism on Animal Protein | 第46-48页 |
| 4.2.2.2 Animal-Based Food and Chronic Diseases | 第48-49页 |
| 4.2.2.3 A Whole Food, Plant-based Diet | 第49-51页 |
| 4.2.2.4 Criticism on Modern Western Medicine | 第51-52页 |
| 4.2.2.5 Comparison with Preceding Vegetarian Thought | 第52-57页 |
| CHAPTER Ⅴ CONCLUSION | 第57-60页 |
| WORKS CITED | 第60-61页 |
