Who said "The hardest thing a man can do is nothing."?

This quote is attributed to Ned Stark.

The hardest thing a man can do is nothing. - Ned Stark

"The hardest thing a man can do is nothing."

Ned Stark Patience

"The man who passes the sentence should swing the sword."

"Winter is coming."

"I am of the night."

"The North remembers."

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."