Who said "Hulk work alone. Hulk work better alone."?

This quote is attributed to Hulk (The Avengers).

Hulk work alone. Hulk work better alone. - Hulk (The Avengers)

"Hulk work alone. Hulk work better alone."

Hulk (The Avengers) Solitude

"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."

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."