Who said "We may be villains, but we're dedicated villains."?

This quote is attributed to Team Rocket.

We may be villains, but we're dedicated villains. - Team Rocket

"We may be villains, but we're dedicated villains."

Team Rocket Perseverance

"Prepare for trouble, and make it double!"

"To protect the world from devastation!"

"To unite all peoples within our nation!"

"To denounce the evils of truth and love!"

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."