Who said "War is the natural state of human existence."?

This quote is attributed to Green Goblin.

War is the natural state of human existence. - Green Goblin

"War is the natural state of human existence."

Green Goblin War

"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."

"Some battles are worth fighting."

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

"Skynet sent me back through time to kill you."

"War teaches us the value of peace."