Who said "Death is just nature's way of saying you're done."?

This quote is attributed to Pickle Rick.

Death is just nature's way of saying you're done. - Pickle Rick

"Death is just nature's way of saying you're done."

Pickle Rick Death

"I'm a pickle, Morty! I'm Pickle Rick! Whoa!"

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"Love is just a chemical reaction that compels animals to breed."

"Nobody exists on purpose, nobody belongs anywhere, everybody's gonna die."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."