Who said "We must die to our old selves to truly live."?

This quote is attributed to Elie Metchnikoff.

We must die to our old selves to truly live. - Elie Metchnikoff

"We must die to our old selves to truly live."

Elie Metchnikoff Death

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."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."