Who said "The battle isn't over until it's over!"?

This quote is attributed to Misty.

The battle isn't over until it's over! - Misty

"The battle isn't over until it's over!"

Misty Perseverance

"You're such a jerk, Ash!"

"Somebody's gotta keep you in line!"

"We're a team, and we stick together!"

"You can't just run off without thinking!"

"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."