Game of Thrones, Season 1

Tywin Lannister:
The lion does not concern himself with the opinions of the sheep.[pause] I suppose I should be grateful your vanity got in the way of your recklessness. [pause] I'm giving you half of our forces-thirty thousand men. You will bring them to Catelyn Stark's girlhood home and remind her that Lannisters pay their debts!

Jaime Lannister:
I didn't know you put such a high value on my brother's life.

Tywin Lannister:
He's a Lannister. He might be the lowest of the Lannisters, but he is one of us. And every day that he remains a prisoner, the less our name commands respect.

Jaime Lannister:
So, the lion does concern himself with the opinions -

Tywin Lannister:
It's not an opinion, it's a fact! If another house can seize one of our own, and hold him captive with impunity, it means we're no longer a house to be feared! Your mother's dead, before long I'll be dead, and you...and your brother and your sister and all of her children. All of us dead, all of us rotting in the ground. It's the family name that lives on. It's all that lives on. Not your honor, not your personal glory, family.

...

Tywin Lannister:
You're blessed with abilities that few men possess. You're blessed to belong to the most powerful family in the Kingdoms, and you're still blessed with youth. And what have you done with these blessings? You've served as a glorified bodyguard for two kings, one a madman, the other a drunk. The future of our family will be determined in these next few months. We could establish a dynasty that will last a thousand years...or we could collapse into nothing, as the Targaryens did. I need you to become the man you were always meant to be. Not next year, not tomorrow...now.