"What they did to me, what I am, can’t be undone."
- The Wolverine
The movie also made me think of this quote:
"Sometimes we have to lose things before we can truly appreciate them."
- Unknown

https://youtu.be/btLk7Ut2s3s

Losing is not a waste. Sometimes a person must lose to win. Losing can lead to a string of wins and achievements.

"Winning may not be everything, but losing has little to recommend it."
- Dianne Feinstein, Nine and Counting: The Women of the Senate