Who said "You taught me that strength comes from discipline."?

This quote is attributed to Iron Fist.

You taught me that strength comes from discipline. - Iron Fist

"You taught me that strength comes from discipline."

Iron Fist Strength

"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."

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."