To master this game you have to be, like I said, very calm, but also quick of wit, sharp of eye, fast of mind, slow of tongue, quick to see.

14 seconds sound clip from the Mystery of Chess Boxing movie soundboard.

You can hear this line at 00:50:42 in the DVD version of the movie.

Quote context

[...]

- Haven't you heard? The first virtue is to be calm. Calm must be the basis of Kung Fu. It's a mental discipline.

- And playing chess will teach you to achieve calmness of mind. I've never discovered a better way.

- Ghost Faced Killer! Now I've finally caught up with you!

(laughs)

- Knight to Queen two.

- To master this game you have to be, like I said, very calm, but also quick of wit, sharp of eye, fast of mind, slow of tongue, quick to see.

- All right, how's this? You're in check.

- At dawn you start training.

- You put two bricks on.

- Yes, granddad.

- Granddad, I think it's too much.

[...]