That is a good reason. But can you do it though?
6 seconds sound clip from the Spiritual Kung Fu (1978) movie soundboard.
You can hear this line at 01:06:10 in the DVD version of the movie.
Quote context
[...]
- So it's time to visit Shi, now.
- Your teacher tells me you wish to leave here, what for?
- I want to capture that traitor and to bring him back here.
- That is a good reason. But can you do it though?
- Even the great law hands have failed to catch him.
- Because he's intentions are good. And he's kung fu it isn't bad...
- Since your intentions are good, I should let you go.
- But tradition says that you must beat the law hands first, you know that.
[...]