Who said "Love harder than being strong. Hulk learning."?

This quote is attributed to Hulk (The Avengers).

Love harder than being strong. Hulk learning. - Hulk (The Avengers)

"Love harder than being strong. Hulk learning."

Hulk (The Avengers) Love

"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 love my wife, but sometimes she drives me crazy."

"Love conquers all obstacles."

"Love is patient, love is kind."

"I'm not stupid, I'm just in love!"