Who said "I won't let war destroy the peace between Pokémon."?

This quote is attributed to Ash Ketchum.

I won't let war destroy the peace between Pokémon. - Ash Ketchum

"I won't let war destroy the peace between Pokémon."

Ash Ketchum War

"Gotta catch 'em all!"

"I'm gonna be a Pokémon Master!"

"There's no such thing as a useless Pokémon. It's the trainer that makes the difference."

"The important thing is not how strong a Pokémon is, but the bond between a trainer and their Pokémon."

"Some battles are worth fighting."

"Sometimes you have to become the monster to stop the monsters."

"Skynet sent me back through time to kill you."

"War teaches us the value of peace."