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

[...]

- You're to keep an eye out for any likely young fighters, and recruit them for our cause. We're gonna need some young blood if we're to win.

- I tell ya this. Chinese kung fu used to be fought properly, but now it's finished.

- I've met lots of fighters in my time, but I never met one quite like you. Come, come, come. I'll beat you with one hand.

- 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?

- 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.

- 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.

- The Fist. Remember that I showed you just how to use it, and that is the blow that I used years ago when I killed two people with it. It is a very powerful blow.

[...]