Look, I may not know all that much, but what little I do know, huh, is much better than your kung fu. You couldn't beat me.
10 seconds sound clip from the Mysterious Footworks of Kung Fu movie soundboard.
You can hear this line at 00:08:58.499 in the Blu-ray version of the movie.
Quote context
[...]
- I tell ya this. Chinese kung fu used to be fought properly, but now it's finished.
- Using just one hand? Huh, then I'll use no hands.
- You gotta be joking! Why don't you go back home and play your games there?
- Go on, go ahead and fight him.
- Teacher, how can I fight him?
- Hey, go on. But you had better not forget all those lessons I taught ya.
[...]