Who said "Death and loss teach us to value what we have now."?

This quote is attributed to Misty.

Death and loss teach us to value what we have now. - Misty

"Death and loss teach us to value what we have now."

Misty Death

"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!"

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."