Who said "The path of duty is often the loneliest path."?

This quote is attributed to Ned Stark.

The path of duty is often the loneliest path. - Ned Stark

"The path of duty is often the loneliest path."

Ned Stark Solitude

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

"Winter is coming."

"I am of the night."

"The North remembers."

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."