As the saying goes, an eye for an eye and a tooth for a tooth.
4 seconds sound clip from the Invincible Iron Palm (1971) movie soundboard.
You can hear this line at 00:24:55.961 in the Blu-ray version of the movie.
Quote context
[...]
- We'll tell that guy Han Jiang to bring the money. While he's on his way, we'll beat him up.
- Later, when we've seen him... The company's ours. We change the sign, we carry on business.
- That's okay. But then, what about Chen Jing?
- Ah, money works wonders. You're afraid he won't join us?
- It's not. Actually, it's quite a simple matter.
- As the saying goes, an eye for an eye and a tooth for a tooth.
- Okay.
- Don't tell me. You want me to teach you those new fighting methods, don't you?
- Yeah.
- Wait until your leg is better. Then I'll teach you all you need to know.
- Things aren't ready yet, so what's the hurry?
[...]