Who said "That's what I do. I drink and I know things"?

This quote is attributed to Tyrion Lannister.

That's what I do. I drink and I know things - Tyrion Lannister

"That's what I do. I drink and I know things"

Tyrion Lannister Humor

Character in A Game of Thrones

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"A man's got to know his limitations."

"The gods flip a coin."

"That's what I do. I drink and I know things."

"Lannister always pays their debts."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."