Who said "I will fight for those who cannot fight for themselves."?

This quote is attributed to Thor (The Avengers).

I will fight for those who cannot fight for themselves. - Thor (The Avengers)

"I will fight for those who cannot fight for themselves."

Thor (The Avengers) Justice

"I am Thor, god of thunder!"

"You lack the strength to wield such power."

"I have nothing but respect for you, and your work."

"There are no men like me."

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."