Who said "My training prepared me for combat, not for friendship."?

This quote is attributed to Iron Fist.

My training prepared me for combat, not for friendship. - Iron Fist

"My training prepared me for combat, not for friendship."

Iron Fist Relationships

"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 key to a happy marriage is communication."

"Marriage is about compromise and understanding."

"Life's greatest treasures are relationships."

"Trust is a luxury I can't afford."