Who said "The gut is the root of human civilization and health."?

This quote is attributed to Elie Metchnikoff.

The gut is the root of human civilization and health. - Elie Metchnikoff

"The gut is the root of human civilization and health."

Elie Metchnikoff Health

Immunologist Russian 1845–1916

"Man can adapt himself to anything, but he cannot adapt himself to anything without effort."

"The study of the lower organisms is the key to the understanding of man."

"Optimism is a moral duty."

"Life is a process of constant transformation."

"You can't expect to be happy if you're surrounded by mess."

"Health and happiness - these are true wealth"

"How can you live like this? It's like a pigsty!"

"You're going to get sick living like this."