Who said "I transform not out of necessity, but choice."?

This quote is attributed to Frieza.

I transform not out of necessity, but choice. - Frieza

"I transform not out of necessity, but choice."

Frieza Power

"I am the most powerful being in the universe!"

"You dare challenge me? How amusing."

"I have transcended beyond a normal Super Saiyan."

"Your resistance only makes this more entertaining."

"Power without control is just destruction."

"Power is not about control, it's about influence"

"The world doesn't need me to be the hero. It just needs me to be dangerous."

"The claws come out when I need them to."