Who said "The man who fears losing has already lost."?

This quote is attributed to Ned Stark.

The man who fears losing has already lost. - Ned Stark

"The man who fears losing has already lost."

Ned Stark Courage

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

"Winter is coming."

"I am of the night."

"The North remembers."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."