Who said "I must be better than those who oppose me."?

This quote is attributed to Iron Fist.

I must be better than those who oppose me. - Iron Fist

"I must be better than those who oppose me."

Iron Fist Success

"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."

"Success comes to those who never give up."

"Success is measured by happiness, not money."

"You make your own luck in this world."

"You have to be organized to be successful in anything."