Who said "Hulk know pain. Pain is teacher."?

This quote is attributed to Hulk (The Avengers).

Hulk know pain. Pain is teacher. - Hulk (The Avengers)

"Hulk know pain. Pain is teacher."

Hulk (The Avengers) Education

"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."

"Education opens doors."

"Education opens doors to endless possibilities."

"I ain't got the education you got, bub."

"You can't put a price on history."