Who said "A closed mouth gathers no secrets."?

This quote is attributed to Littlefinger.

A closed mouth gathers no secrets. - Littlefinger

"A closed mouth gathers no secrets."

Littlefinger

"Chaos isn't a pit. Chaos is a ladder."

"Knowledge is power, but power without wisdom is destruction."

"The world is not kind to those who hesitate."

"A man with no debts is a man with no leverage."