Viserys: "Do you take me for a fool?"
Illyrio: "I take you for a king. Kings lack the caution of common men. My apologies if I've given offense."

Viserys: "I know how to play a man like Drogo. I give him a queen and he gives me an army."

Sansa: "Do you think Joffrey will like me? What if he thinks I'm ugly?"
Catelyn: "Then he is the stupidest prince that ever lived."
Sansa: "He is so handsome. When would we be married? Soon? Or do we have to wait?"
Catelyn: "Hush now. Your father hasn't even said yes."
Sansa: "Why would he say no? He'd be the second most powerful man in the kingdoms."
Catelyn: "He'd have to leave home. He'd have to leave me. And so would you."
Sansa: "You left your home to come here. And I'd be queen someday. Please make father say yes!"
Catelyn: "Sansa..."
Sansa: "Please! Please, it's the only thing I ever wanted."

Jon Snow: "Lord Stark? There are five pups. One for each of the Stark children. The direwolf is the sigil of your House. They were meant to have them."
Ned Stark: " You will train them yourselves. You will feed them yourselves. And if they die, you will bury them yourselves."

Ser Waymar Royce: "You want to run away south, run away. Of course they will behead you as a deserter, if I don't catch you first. Get back on your horse. I won't say it again."

Ser Waymar Royce: "What do you expect? They're savages. One lot steals a goat from another lot, before you know it they're ripping each other to pieces."
Will: "I've never seen wildlings do a thing like this. I never seen a thing like this, not ever in my life."
Ser Waymar Royce: "How close did you get?"
Will: "Close as any man would."
Gared: "We should head back to the wall."
Ser Waymar Royce: " Do the dead frighten you?"
Gared: "Our orders were to track the wildlings. We tracked them. They won't trouble us no more."
Ser Waymar Royce: "You don't think he'll ask us how they died? Get back on your horse."

Joffrey: "My mother's been looking for you. We ride for King's Landing today."
Tyrion: "Before you go, you will call on Lord and Lady Stark and offer you sympathies."
Joffrey: "What good will my sympathies do them?"
Tyrion: "None but it is expected of you. Your absence has already been noted."
Joffrey: "The boy means nothing to me and I can't stand the wailing of women.
Tyrion: "(Slaps Joffrey) One word and I'll hit you again."
Joffrey: "I'm telling mother!"
Tyrion: "Go! Tell her but first you will get to Lord and Lady Stark and you will fall on your knees in front of them and tell them how very sorry you are, that you are at their service, and that all your prayers are with them. Do you understand?
Joffrey: "You can't..."
Tyrion: "(Slaps Joffrey again) Do you understand?"

Ned: "What news?"
Catelyn: "She's fled the capital. She says Jon Arryn was murdered by the Lannisters. She says the King is in danger."
Ned: "She's fresh widowed, Cat. She doesn't know what she's saying."

Arya: "Septa Mordane says I have to do it again. My things weren't properly folded, she says. Who cares how they're folded? They're going  to get all messed up anyway.

Myrcella: "Is Bran going to die?"
Tyrion: "Apparently not."
Cersei: "What do you mean?"
Tyrion: "The Maester says the boy may live."
Cersei: "It's no mercy, letting a child linger in such pain."
Tyrion: "Only the Gods know for certain. All the rest of us can do is pray.
...
Jaime: "Even if the boy lives, he'll be a cripple, a grotesque. Give me a good clean death any day."
Tyrion: "Speaking for the grotesques, I'd have to disagree. Death is so final, whereas life. Ah, life is full of possibilities.

Assassin: "You're not supposed to be here. No one is supposed to be here. It's a mercy. He's dead already."
Sorry for the bloody gif."