Who said "Leaders must first lead themselves."?

This quote is attributed to Elie Metchnikoff.

Leaders must first lead themselves. - Elie Metchnikoff

"Leaders must first lead themselves."

Elie Metchnikoff Leadership

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."

"A leader must be fair and just."

"Integrity is everything."

"One must take responsibility for one's environment."

"In this house, I make the decisions"