You can't tell about some of those old guys. It's surprising sometimes how tough they are.

— Bob Curtin (Tim Holt)

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

You can hear this line at 00:19:12.511 in the Blu-ray version of the movie.

Quote context

[...]

- Why not try gold digging for a change? Well, it ain't any riskier than waiting around here for a break.

- And this is the country where the nuggets of gold are just crying for you to take them out of the ground, make them shine in coins, on the fingers and necks of swell dames.

- One thing, living in the open's cheaper than it is here in Tampico. Our money would last longer.

- Sure. The longer it lasts, the greater our chance of digging something up would be.

- We'd have to have equipment, all right... Picks and spades, pans, burros. Wonder how much it would all cost.

- That old man would know.

- Yeah. He could give us some pointers, all right.

- He's too old to take along with us, of course. We'd have to pack him on our backs.

- You can't tell about some of those old guys. It's surprising sometimes how tough they are.

- I don't know what gold looks like in the ground. I've only seen it in jewelry store windows and people's mouths.

- You know anything about prospecting?

- Uh, not much when you come right down to it.

- We might have real use for an experienced guy like that old-timer.

- Let's go hunt him up right away.

- Will I go? What a question. Of course I'll go. Any time, any day. I was only waiting for one or two guys to ask me. Hunt for gold? Always at your service.

[...]