learn one's lesson

learn (one's) lesson

To learn through painful experience not to do something, often something one had been warned about or knew might be risky. I told you that you'd feel awful if you drank that much wine. I hope you've learned your lesson. I certainly learned my lesson about buying something from a stranger online.
See also: learn, lesson

learn one's lesson

Profit from experience, especially an unhappy one. For example, From now on she'd read the instructions first; she'd learned her lesson. Also see hard way.
See also: learn, lesson
References in classic literature ?
Money, my dear; money will do anything--except making one learn one's lessons.