Who said "I was once human. That weakness is now frozen away."?

This quote is attributed to Mr. Freeze.

I was once human. That weakness is now frozen away. - Mr. Freeze

"I was once human. That weakness is now frozen away."

Mr. Freeze Strength

"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."

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."