Who said "Adventure is calling me to do more."?

This quote is attributed to Iron Fist.

Adventure is calling me to do more. - Iron Fist

"Adventure is calling me to do more."

Iron Fist Adventure

"I am the living weapon. I am Iron Fist."

"I've trained my entire life for this moment."

"The chi flows through all living things."

"I need to protect the innocent."

"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."