“it's not a question but a lesson learned in time”

“Bromidic though it may sound, some questions don't have answers, which is a terribly difficult lesson to learn.”

“The hardest lesson for humans to learn: that organic complexity will entail organic time.”

“Yes I was burned but I called it a lesson learned. Mistake overturned so I call it a lesson learned. My soul has returned so I call it a lesson learned… another lesson learned”

“I was a changed man when i got out last time, I learned ... I learned ... I learned my lesson well ...”

“Perhaps the first lesson to be learned from biology is that there are lessons to be learned from biology.”

“It was a lesson that I would learn in time though it wasn't Hegbert who taught me.”

“I learned: the first lesson of my life: nobody can face the world with his eyes open all the time.”

“Love is a lesson worth learning.”

“The lesson of history is that no one learns.”