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。”
1The Master said, 'At fifteen, I had my mind bent on learning.
2'At thirty, I stood firm.
3'At forty, I had no doubts.
4'At fifty, I knew the decrees of Heaven.
5'At sixty, my ear was an obedient organ for the reception of truth.
6'At seventy, I could follow what my heart desired, without transgressing what was right.'