- 50 years, huh?
- 50 years. God, I've seen it all. All of it.

5 seconds sound clip from the Rocky (1976) movie soundboard.

You can hear this line at 01:04:31.126 in the Blu-ray version of the movie.

Quote context

[...]

- Freak luck is a strange thing.

- Yeah, sure it is.

- Can I sit down?

- Yeah, sure.

- What the hell are those?

- Oh, those are domestic turtles. The one on the top is Cuff and the other guy's Link. The rest of them are marbles.

- Yeah? They make good soup, don't they?

- Anyway, look... I'm here to warn ya that you gotta be very careful about this shot that you got at the title, because, I don't know, like the Bible says you ain't gonna get a second chance.

- Yeah. All right.

- You thought of that, huh?

- Well, what you need is a manager. A manager. Listen to me. I know because I've been in this racket for 50 years.

- 50 years, huh?

- 50 years. God, I've seen it all. All of it.

- You know what I done?

- What?

- I have done it all.

- You shoulda seen me when I knocked Giny Russo outta the ring. Outta the goddamn ring. That's September the 14th, 1923.

- And it was the same night that Firpo knocks Dempsey outta the ring. The same night.

- So, who gets the publicity? Figure that out.

- Dempsey.

- That's right. But why?

- 'Cause he was Champ.

- No! Because he had a manager. I had nothin', man.

[...]