Who said "Fear is the tool of weak men. I use knowledge instead."?

This quote is attributed to Lannister.

Fear is the tool of weak men. I use knowledge instead. - Lannister

"Fear is the tool of weak men. I use knowledge instead."

Lannister Fear

"A Lannister always pays his debts."

"I am the god of tits and wine."

"You are an awful man."

"I drink and I know things."

"Face your fears with courage."

"You can't live your life in fear."

"Snakes. Why'd it have to be snakes?"

"Fear is just another obstacle to overcome."