Who said "Hunting treasure in the Grand Line?! Now that's the life!"?

This quote is attributed to Luffy.

Hunting treasure in the Grand Line?! Now that's the life! - Luffy

"Hunting treasure in the Grand Line?! Now that's the life!"

Luffy Adventure

"I'm gonna be King of the Pirates!"

"A man's dream will never die!"

"I don't care what happens to me, I'm gonna help my friend!"

"Being alone is better than being with the wrong people."

"The greatest adventure is life itself."

"The adventure of life begins with a single step."

"Adventure finds you when you stop running."

"Fortune and glory, kid."