Oh, I'm not quick on my feet any longer.

2 seconds sound clip from the The Treasure of the Sierra Madre movie soundboard.

You can hear this line at 00:35:24.675 in the Blu-ray version of the movie.

Quote context

[...]

- I don't get you.

- All right, suppose you're in charge of taking care of the goods. One day, I'm deep in the brush, and Curtin's on his way to the village to get provisions. That'd be your big chance to pack up and leave us in the cold.

- Only a guy that's a thief at heart would think me likely to do a thing like that.

- Right now, it wouldn't be worth your while, but when the pile has grown, say, to 300 ounces, think of such things you will.

- How's about yourself?

- Oh, I'm not quick on my feet any longer.

- You fellas are a lot tougher than when we started out.

- By the time the pile has grown to be really tempting, I won't be able to run half as fast as either of you.

- You'd get me by the collar and string me up in no time.

- That's why I think I'm the most trustworthy of the outfit.

[...]