Who said "The Daleks do not forgive. We do not forget."?

This quote is attributed to Dalek.

The Daleks do not forgive. We do not forget. - Dalek

"The Daleks do not forgive. We do not forget."

Dalek Perseverance

"Exterminate! Exterminate!"

"You will be exterminated!"

"Daleks do not feel pity or remorse or fear."

"We are superior. We are pure."

"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."