- Lucky for you, retardation isn't hereditary. Is it? Cos it might be.
- I don't think so.

8 seconds sound clip from the Jungle Fever movie soundboard.

You can hear this line at 00:20:27 in the Blu-ray version of the movie.

Quote context

[...]

- Why don't you say something?

- I just did.

- Like, I'm not a man. I'm a woman, right?

- When my brothers they pick on me, I can deal with it. When they pick on you, you just sit there. You grin and take it.

- With all due respect, your two brothers are retarded.

- Yeah.

- I'm serious. Jimmy and Charlie are definitely retarded. The poor guys, they don't even know it.

- They don't.

- Lucky for you, retardation isn't hereditary. Is it? Cos it might be.

- I don't think so.

- No, you could be retarded. I could be going out with a retarded girl and not even know it.

- Now concerning the things whereof ye wrote unto me: it is good for a man not to touch a woman.

- Nevertheless, to avoid fornication let every man have his own wife, and every woman have her own husband.

- Mmm, mmm, mmm. Well, well. I'll get it.

[...]