我二十岁进燕京大学社会学系学社会学时 ,不懂社会学是讲些什么的 ,说实在的 ,现在还是说不清楚。回头想想倒是司马迁的古训很能说明问题 ,即察天人之际 ,通古今之变 ,指出了汉朝之前作为一个读书人应努力的一个方向 ,这句话里其实也包括社会学在内。天人之际就是人和自然的关? When I was 20 years old, I was in Sociology Department of Yanjing University and I did not understand what sociology is about. To be honest, I still can not tell. Think back to Sima Qian Sutra’s old saying is to explain the problem, that is, the occasion of heaven, ancient and modern changes, pointed out that before the Han Dynasty as a scholar should work hard in one direction, this sentence actually includes sociology. Heaven and Earth is the relationship between man and nature?