We've been experts for centuries now and our technique has done nothing but improve.

7 seconds sound clip from the Duel to the Death movie soundboard.

You can hear this line at 00:09:10 in the Blu-ray version of the movie.

Quote context

[...]

- I must say China is a wonderful country. Her influence is quite far and wide across the world. You should be proud.

- You are too kind, sir. But you flatter us.

- Take Shaolin Kung Fu for instance, it's famous but conservative. And it's admired in tradition.

- I think you'll find modern Japanese martial arts are far superior.

- I am afraid I don't agree. It's an established fact that Shaolin Kung Fu is the world's greatest martial art.

- We've been experts for centuries now and our technique has done nothing but improve.

- I don't believe your fighters can ever defeat the students of Shaolin.

- Well, it is said that Shaolin Kung Fu has 72 techniques. That's very impressive. You have great traditions.

- I'm sure that once you're forced to be reckoned with.

- But I doubt your students today are the same before.

[...]