Who said "Others will fall before the might of the Empire."?

This quote is attributed to Palpatine.

Others will fall before the might of the Empire. - Palpatine

"Others will fall before the might of the Empire."

Palpatine Strength

"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!"

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."