Opportunity has knocked at my door. I'm going to be a leather pusher.
7 seconds sound clip from the Palooka (1934) movie soundboard.
You can hear this line at 00:12:33 in the Blu-ray version of the movie.
Quote context
[...]
- I got the world by the elbow! Ha, ha!
- Well, Joe. What are you doing?
- Opportunity has knocked at my door. I'm going to be a leather pusher.
- What?
- Sure. I'm going to breathe carbon monoxide and gasoline fumes instead of fresh air.
- I'm going to the city to be a fighter. I can see my name in lights right now.
- Joe Palooka, the champion of the world, just like my dad.
[...]