本文談牟宗三先生對於儒佛義理的判定，把題目鎖定在其自述傳記做為主軸，主要以《五十自述》一書做為談論的基礎。此書似於作者的自傳，記述其生命的發展，特別就哲學的生命體會做一簡單的介紹，以儒、道、釋、基督教等視為生命存在的學問，其中以儒佛談的最多。雖為傳記，記述其五十歲以前的生命體會，然往後牟先生的哲理發展，卻有些義理在此已成形，而有些往後有不同的發展。要契入此書，不見得容易，若有生命實踐上的感受者，更容易了解。牟先生的哲學省思相當的全面性，包括中、西、印等等，都有涉及，甚至國家民族亦都關心，吾人只就其對於儒佛之間的判定，做一敍述與反思，而儒佛的義理，以第五、第六章為主，吾人主要就這些記述中的見解，其間的前後關係交涉，及牟先生的判定做一解說，以見牟宗三先生在生命的學問之契入過程中，真能體現出的哲學生命是什麼；並就一個哲人的豐富生命經驗所累積的智慧做一介紹。

This article is on Mou Zongsan’s judgment about the doctrines of Confucianism and Buddhism, revolving around his autobiography. Autobiography at Fifty is a description of the development of his life as well as an introduction about the living entity of philosophy, considering Confucianism, Taoism, Buddhism and Christianity as the knowledge of life, among which Buddhism is discussed the most. Although it is an autobiography at the age of fifty, some doctrines of Mou’s philosophy developed later in his life can be found in this book. This is not an easy book, but those who have experience in the fulfillment of life can understand it more easily. Mou’s philosophical thinking is quite comprehensive, delving into Chinese, western and Indian philosophies along with even the issues of states and nations. In this article, the writer only describes and reflects on his judgment about Confucianism and Buddhism in the fifth and sixth chapters of his autobiography to show how Mou understood the knowledge of life and what philosophical life he embodied, and also introduces the philosopher’s wisdom accumulated from his rich living experience.