Who said "Kindness is the luxury of those already defeated."?

This quote is attributed to Green Goblin.

Kindness is the luxury of those already defeated. - Green Goblin

"Kindness is the luxury of those already defeated."

Green Goblin Kindness

"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."

"A good man treats his wife with respect."

"Kindness always comes back around."

"The power of a smile can change everything."

"Kindness is weakness to some. Not to me."