Who said "I've learned that death reminds us to live."?

This quote is attributed to Iron Fist.

I've learned that death reminds us to live. - Iron Fist

"I've learned that death reminds us to live."

Iron Fist Death

"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."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."