Who said "Death is just nature's way of saying slow down."?

This quote is attributed to Bart Simpson.

Death is just nature's way of saying slow down. - Bart Simpson

"Death is just nature's way of saying slow down."

Bart Simpson Death

"Eat my shorts!"

"Ay caramba!"

"Don't have a cow, man."

"Cowabunga!"

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."