Quotes from Leon:

Fatman: Somebody's coming up. Somebody serious. 

Mathilda: Is life always this hard, or just when you're a kid? 
Leon: Always like this. 

Stansfield: I like this moment of calm before the storm; It reminds me of Beethoven, can you hear it? It's like when you put your head to the grass, you can hear it growing, you can hear the little insects... Do you like Beethoven? 
Malky: I couldn't really say. 

Mathilda: Leon, what exactly do you do for a living? 
Leon: Cleaner. 
Mathilda: You mean you're a hit man? 
Leon reluctantly: Yeah. 
Mathilda: Cool. 

Mathilda: Do you clean anyone? 
Leon: No women, No kids, that's the rules. 
Mathilda: How much would it cost to hire someone to get those dirtbags that killed my brother? 
Leon: Five grand a head. 
Mathilda: Wow. How about this: I work for you; in exchange, you teach me how to clean. What do you think? I'll clean your place, I'll do the shopping, I'll even clean your clothes. Is it a deal? 

Mathilda: I've decided what to do with my life; I'm going to be a cleaner. 
Leon: You want to be a cleaner? [passes her a gun and bullets] Here, goodbye gifts, go clean. But not with me. I work alone, understand? Alone. 
Mathilda: Bonnie and Clyde didn't work alone, Thelma and Louise didn't work alone, and they were the best. 

Leon: The rifle is the first weapon you learn how to use, because it lets you keep your distance from the client. The closer you get towards being a pro, the closer you can get to the client. The knife, for example, is the last thing you learn. 

Mathilda: You killed my Brother. 
Stansfield: I'm sorry, and you want to join him? 
Mathilda: No. 
Stansfield: It's always the same thing. It's when you start to become really afraid of death that you learn to appreciate life. Do you like life, sweetheart? 
Mathilda: Yes. 
Stansfield: Good, because I take no pleasure in taking life if it's from a person that doesn't care about it.