Who said "Loneliness and solitude are not the same thing."?

This quote is attributed to Iron Fist.

Loneliness and solitude are not the same thing. - Iron Fist

"Loneliness and solitude are not the same thing."

Iron Fist Solitude

"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."

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."