Who said "Death cannot touch what has transcended mortality."?

This quote is attributed to Green Goblin.

Death cannot touch what has transcended mortality. - Green Goblin

"Death cannot touch what has transcended mortality."

Green Goblin Death

"Out, am I?"

"You know how much you've sacrificed to fight me? Everything! But the cunning warrior survives by admitting what he is."

"The cunning warrior survives by admitting what he is."

"I'm something of a scientist myself."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."