Who said "Deception is the highest art."?

This quote is attributed to Palpatine.

Deception is the highest art. - Palpatine

"Deception is the highest art."

Palpatine Art

"Did you ever hear the tragedy of Darth Plagueis the Wise?"

"The dark side of the Force is a pathway to many abilities some consider to be unnatural."

"Have you ever heard of the tragedy of Darth Plagueis? I thought not."

"Unlimited power!"

"The stage is my true home."

"Art is the expression of the soul."

"Living well means living properly."

"Art and music are the treasures of civilization"