Bran: I'm not a cripple.
Tyrion: Then I'm not a dwarf. My father will be rejoiced to hear it.

I will hurt you for this. A day will come when you think you are safe and happy, and your joy will turn to ashes in your mouth. And you will know the debt is paid.

Tyrion: Let me give you some advice bastard. Never forget what you are. The rest of the world will not. Wear it like armor, and it can never be used to hurt you.
Jon: What the hell do you know about being a bastard?
Tyrion: All dwarfs are bastards in their father's eyes.

It's not easy being drunk all the time. Everyone would do it, if it were easy.

Tyrion: I'm the captain. If this ship goes down, I go down with it.
Varys: I'm sure many captains said the same when the ship was afloat.

Tywin: I always thought you were a stunted fool. Perhaps I was wrong.
Tyrion: Half wrong. I'm new to strategy, but if we are going to be surrounded by three armies, it appears we cannot stay here.

The Hound: Rough night, imp?
Tyrion: If I get through this without scratching from one end through the other, it will be a miracle.

Turns out, far too much has been written about great men and not nearly enough about morons. Doesn't seem right.

You love your children. It's your one redeeming quality; that and your cheekbones.

I much like my head. I don't want to see it removed just yet.

Jaime: Tell me you're not thinking of taking The Black.
Tyrion: And go celibate? The whores would go begging from Casterly Rock. I just want to stand on the edge and piss off the end of the world.

Tyrion: Forgive me if I don't weep for you.
Varys: No one weeps for spiders or whores.

Game of Thrones Quotes

Tis a big and beautiful world. Most of us live and die in the same corner where we were born and never get to see any of it. I don't want to be most of us.

Oberyn

I’m going to kill the queen.

Arya