Who said "Work without passion is slavery. My work is my salvation."?

This quote is attributed to Mr. Freeze.

Work without passion is slavery. My work is my salvation. - Mr. Freeze

"Work without passion is slavery. My work is my salvation."

Mr. Freeze Work

"I'm not a human anymore. I'm something... colder."

"My wife, Nora... she's all that matters to me."

"Vengeance is a cold dish best served frozen."

"The cold never bothered me anyway."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."