As Grey's Anatomy prepares to turn 100 episodes old tomorrow night, here are some of the best lines from last week's episode, "No Good at Saying Sorry (One More Chance)."

Relive some of the 99th episodes best moments below, and follow the link to browse our library of Grey's Anatomy quotes from every episode of the medical drama to date!

Meredith: [narrating] As doctors we can't undo our mistakes, and we rarely forgive ourselves for them. But, it's a hazard of the trade. But, as human beings we can always try to do better. To be better. To right a wrong. Even when it feels irreversible. Of course, I'm sorry doesn't always cut it. Maybe because we use it so many different ways. As a weapon. As an excuse. But, when we are really sorry, when we use it right. When we mean it. When our actions say what words never can. When we get it right "I'm sorry" is perfect. When we get it right, "I'm sorry" is redemption. | permalink

Cristina: (pushes Owen) Take care now? What is that? What are you like, you're all happy now? What are you? Just a choke 'em and forget 'em kind of guy?
Owen: (pulls out piece of paper, hands it to Cristina)
Cristina: Hey there now. Take care now. Nice work Yang. What is this?
Owen: It's my shrink. My shrink gave me these sentences. We ah, we came up with them together. They're all 3 word sentences. So I could have something to say to you instead of the 3 words that are... that are killing me. The 3 words that you know I feel but I can't say them, because it would be cruel to say them, because I am no good for you. I don't wanna torture you. I don't wanna look at you longingly when I know I can't be with you. So, yeah I'm smiling, and I'm saying take care now. I'm letting you off the hook. I'm trying, I'm trying so hard to let you off the hook. I'm trying to make it right. What I did to you. Can't you see that? I'm just trying to make it right.
Cristina: (gives the paper back) Take care now. | permalink

Richard: I know you don't like me, and you have every right not to like me. I have abused my power, but now I'm here on your turf. What I need to say... What I need to say is I saw what your mother was doing. I saw how neglected you were, I saw her drive your father off. And, I spent a lot of time beating myself up about that. But, what does that do for you? Nothing. Nothing! I wasn't your advocate. I didn't fight for you. I never stood up for you. I left myself off the hook. I told myself I was young, and didn't know any better. But, I did know better. I wasn't much younger than you are now. I should have fought for you Meredith. Like you fought for that child today. I told myself that I wasn't your father, that it wasn't my responsibility, that I was right not to butt in. I let myself off the hook. You were helpless. You were a baby. A beautiful, smart, funny little girl, and no one stood up for you. I'm so sorry. I'm so sorry. I'm so sorry. I'm so sorry. | permalink

Mark: Tree girl made it through?
Callie: I can't lie. Even if they think I'm wrong. Even if they don't understand. Even if they think I'm crazy. I'm me. They're supposed to accept me. They're supposed to support me. They're supposed to love me. You know? I can't lie. | permalink

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