Who said "True strength come from heart, not muscles."?

This quote is attributed to Hulk.

True strength come from heart, not muscles. - Hulk

"True strength come from heart, not muscles."

Hulk Courage

"Hulk is strongest one there is."

"Don't make me angry. You wouldn't like me when I'm angry."

"Puny god."

"Hulk smash!"

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."