一位大学毕业参加了工作的朋友，来信诉说了两年来所遇到的重重烦恼。末了，对我提了这样一个请求：“老师，你能不能以最简明扼要的语言告诉我，让我以一种什么东西为公式，去指导今后的生活道路？”我在回信中写道：“其实，过去我在课堂上也讲过，只不过你忘了，现在旧话重 A university friend who has graduated from the work office wrote a letter telling me of the troubles I encountered in the past two years. Finally, I asked for such a request: “Teacher, can you tell me in the most concise language, let me use what kind of thing as a formula to guide the future life path?” I wrote in reply: "Actually, in the past I have also talked about in the classroom, but you forgot, now the old re-emphasis