Who said "Death is not the end, just a new beginning."?

This quote is attributed to Team Rocket.

Death is not the end, just a new beginning. - Team Rocket

"Death is not the end, just a new beginning."

Team Rocket Death

"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!"

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."