During the past year, I've given you all sorts of menial tasks. That's because I wanted to test your patience, and toughen you up physically. That's the first step in training for the Iron Fist.
15 seconds sound clip from the Five Fingers of Death movie soundboard.
You can hear this line at 00:37:41 in the DVD version of the movie.
Quote context
[...]
- You know you're not supposed to get into brawls. Why did you break the rules?
- Sir, Chen Lang went too far this time. I couldn't take it.
- You see, I'm not getting any younger, and in that incident earlier on today, I got quite badly hurt.
- So I'll give you this Iron Fist manual. Study it carefully.
[...]