Who said "A king must stand alone if necessary."?

This quote is attributed to Stannis Baratheon.

A king must stand alone if necessary. - Stannis Baratheon

"A king must stand alone if necessary."

Stannis Baratheon Solitude

"Duty is the death of love."

"I am of the night."

"The night is dark and full of terrors."

"A king does not ask, he commands."

"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."