子曰:三十而立,四十不惑,五十知天命,六十耳顺,七十随心所欲.用英语怎...答:The Master said, At fifteen I set my heart upon learning. At thirty, I had planted my feet firm upon the ground. At forty, I no longer suffered from perplexities. At fifty, I knew what were the biddings of Heaven. At sixty, I heard them with docile ear. At seventy, I...