Who said "Never assume the battle is won until it's truly over."?

This quote is attributed to Ellen Ripley.

Never assume the battle is won until it's truly over. - Ellen Ripley

"Never assume the battle is won until it's truly over."

Ellen Ripley Perseverance

"Get away from her, you bitch!"

"I say we take off and nuke the entire site from orbit. It's the only way to be sure."

"These people are here to protect me. I'm the only one who can"

"You know, I don't care what you believe anymore."

"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."