Who said "Courage in the face of the Daleks is mere suicide."?

This quote is attributed to Dalek.

Courage in the face of the Daleks is mere suicide. - Dalek

"Courage in the face of the Daleks is mere suicide."

Dalek Courage

"Exterminate! Exterminate!"

"You will be exterminated!"

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

"We are superior. We are pure."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."