Rather go by myself. Going it alone's the best way, but you got to have a stomach for loneliness. Some guys go nutty with it.

— Howard (Walter Huston)

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

You can hear this line at 00:13:34.490 in the Blu-ray version of the movie.

Quote context

[...]

- I know what gold does to men's souls.

- You talk as though you struck it rich sometime or other, pop. How about it? Then what are you doing in here, a down-and-outer?

- That's the gold. That's what it makes of us. Never knew a prospector yet that died rich. Make one fortune, you're sure to blow it in trying to find another. I'm no exception to the rule.

- Ah, sure, I'm an odd old bone now, but, say, don't you guys think the spirit's gone.

- I'm all set to shoulder a pickax and a shovel anytime anybody's willing to share expenses.

- Rather go by myself. Going it alone's the best way, but you got to have a stomach for loneliness. Some guys go nutty with it.

- On the other hand, going with a partner, too, is dangerous... murder's always lurking about, partners accusing each other of all sorts of crimes.

- Oh, as long as there's no find, the noble brotherhood will last. But when the piles of gold begin to grow, that's when the trouble starts.

- Me, now, I wouldn't mind a little of that kind of trouble.

- Ah, I think I'll go to sleep and dream about piles of gold getting bigger and bigger and bigger.

[...]