Who said "The best assassins leave no trace of their work."?

This quote is attributed to Varys.

The best assassins leave no trace of their work. - Varys

"The best assassins leave no trace of their work."

Varys Work

"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."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."