And that can do it. A year or so of that can take what was once a family and finish it... can take a fine, sensitive, friendly kid... and twist him and turn him.

14 seconds sound clip from the Knock on Any Door movie soundboard.

You can hear this line at 00:21:48.086 in the Blu-ray version of the movie.

Quote context

[...]

- Perhaps if I'd been able to see them through a little longer, but...

- Then I was called to Washington. Two weeks later, I was in the army. I was overseas for three years.

- War and men being what they are, I forgot the Romanos.

- And the help they got from organized charity wasn't enough.

- So with Nick at his most impressionable age, they were forced to move into one of the worst districts in the city, perhaps the worst in any American city!

- And that can do it. A year or so of that can take what was once a family and finish it... can take a fine, sensitive, friendly kid... and twist him and turn him.

- Hey, what's that?

- He's the new kid. He just moved in. He's been to the store for his ma.

- Let's make him feel at home.

- Yeah. Hey, you! Hey, pretty boy!

- Hi, fellas.

- Hi, fellas, he says. You hear that, Jimmy?

- Sure, Vito, I heard him.

- Why don't you give pretty boy here a welcome, Jimmy?

- Welcome, pretty boy.

[...]