Who said "Training isn't easy, but that's what makes it worthwhile."?

This quote is attributed to Misty.

Training isn't easy, but that's what makes it worthwhile. - Misty

"Training isn't easy, but that's what makes it worthwhile."

Misty Work

"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!"

"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."