I had cause to look up the Confucius quote about age today. It's been remarkably accurate for me.

“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 the biddings of Heaven.
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.”

In Chinese: https://so.gushiwen.cn/mingju/juv_cda7e600a887.aspx

#Mandarin