Who said "Perseverance is merely prolonging the inevitable."?

This quote is attributed to Doomsday.

Perseverance is merely prolonging the inevitable. - Doomsday

"Perseverance is merely prolonging the inevitable."

Doomsday Perseverance

"I am the thing that darkness fears."

"Destruction is the only truth I know."

"You cannot stop what has already begun."

"I grow stronger with every battle."

"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."