Who said "Ambition consumes the ambitious."?

This quote is attributed to Tyrion Lannister.

Ambition consumes the ambitious. - Tyrion Lannister

"Ambition consumes the ambitious."

Tyrion Lannister

Character in A Clash of Kings

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"I drink and I know things"

"I drink and I know things."

"Never forget what you are, for surely the world will not."

"All dwarfs may be bastards, yet not all bastards are dwarfs."