Mark "Rent-boy" Renton: I chose not to choose life. I chose somethin' else.

Mark "Rent-boy" Renton: Begbie didn't do drugs either. He just did people.

Mark "Rent-boy" Renton: We called him Mother Superior on account of the length of his habit.

Mark "Rent-boy" Renton: We would have injected vitamin C if only they had made it illegal!

Mark "Rent-boy" Renton: Take the best orgasm you've ever had... multiply it by a thousand, and you're still nowhere near it.

Mark "Rent-boy" Renton: And the reasons? There are no reasons. Who needs reasons when you've got heroin?

Diane: Do you find that this approach usually works? Or let me guess, you've never tried it before. In fact, you don't normally approach girls - am I right? The truth is that you're a quiet sensitive type but, if I'm prepared to take a chance, I might just get to know the inner you: witty, adventurous, passionate, loving, loyal. A little bit crazy, a little bit bad. But hey - don't us girls just love that?

Mark "Rent-boy" Renton: Propelling ourselves with longing towards the day that it would all go wrong, because no matter how much you stash, or how much you steal you never have enough. No matter how often you go out and rob and fuck people over, you always need to get up and do it all over again.