Who said "Sometimes anger is the only thing that keeps you going."?

This quote is attributed to Hulk (The Avengers).

Sometimes anger is the only thing that keeps you going. - Hulk (The Avengers)

"Sometimes anger is the only thing that keeps you going."

Hulk (The Avengers) Motivation

"Puny god."

"You want a Hulk? You're looking at a Hulk right now."

"I'm always angry."

"That's my secret, Captain. I'm always angry."

"I believe in working hard for what you want."

"Never underestimate the power of determination."

"I don't need a reason to fight."

"The most important thing is the mission. Nothing else matters."