Riggs has demons he hasn't been able to slay yet, but I don't believe he's a danger to others. We're better off with him out there.

Cahill

Cahill: You like it up there — inches from death, so close to the edge. You’re so angry. One day it will kill you, and I won’t know why.
Riggs: It’s like the anger’s always been there. I mean, not when I was a kid, you know. Certainly, after my mom passed. It’s like a, like a fire, you know. Sometimes I get so hot, I just want to jump outside of myself, you know.

Cahill: Where are they going?
Murtaugh: The crazy ones? They always climb.

That guy was broken long before he got to me.

Roger

It's not even noon, Riggs, and I'm staring into the abyss.

Avery

Maybe he's training to be a Navy Seal...or a real seal.

Roger

It seems that I have dug my own grave.

Riggs

If I had to guess, you didn't want her wrapped up in your darkness. You were trying to protect her.

Murtaugh [to Riggs]

Captain Bailey? That's a good idea.

Avery

I can see in your eyes, you want to dig into this. Get your hands dirty.

Leo

I’ll admit, I was briefly atop your wife, but it was merely a protective maneuver.

Leo

Here's the big secret no one tells you. Family is overrated. Friends are better. And if you're lucky, your friends become family.

Riggs