子曰:“吾十有五而志于学,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。”
The Master said, "At fifteen, I had my mind bent on learning. "At thirty, I stood firm. "At forty, I had no doubts. "At fifty, I knew the decrees of Heaven. "At sixty, my ear was an obedient organ for