Who said "I have walked through fire and emerged unchanged."?

This quote is attributed to Mountain.

I have walked through fire and emerged unchanged. - Mountain

"I have walked through fire and emerged unchanged."

Mountain Perseverance

"I am the Mountain."

"The strong do what they can, and the weak suffer what they must."

"Ours is the fury."

"A man's worth is measured by his strength."

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."