At sixty ,I heard them with docile ear.At seventy,I could follow the dictates of my own heart;for what I desired no longer overstepped the boundaries of right .

• ”2.；子曰:“吾十有五而志乎学；三十而立；四十而不惑；五十而知天命；六十而耳顺；七十而从心所欲不逾矩