Who said "I serve the realm and the realm alone."?

This quote is attributed to Varys.

I serve the realm and the realm alone. - Varys

"I serve the realm and the realm alone."

Varys

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

"I have always believed knowledge to be power."

"The storms come and go, the big fish eat the little fish, and I keep on reading."

"Littlefinger is clever, but in the way a rat is clever."