I guess we've all learned
a LESSON today.
The Big Bang Theory Season 11, Episode 9
Will the LESSON last long?
Money Heist Season 1, Episode 5
First LESSON - stick them with the pointy end.
Game of Thrones Season 1, Episode 2
Anyway, I've learned my LESSON.
She's out of my league, I'm done with her.
The Big Bang Theory Season 1, Episode 1
- You didn't bring another gift, did you?
- No, no, I learned my LESSON.
The Big Bang Theory Season 6, Episode 20