The Master said, “At fifteen, I set my will on learning. At thirty, I was established. At forty, I had no perplexities. At fifty, I knew the decrees of Heaven. At sixty, my ears were in accord. At seventy…”

“…I followed what my heart desired, without transgressing what was right.”

- Chapter VI, Book II Wei Zheng in The Analects of Confucius 551 - 479 BCE).