Who said "A true leader serves those he leads."?

This quote is attributed to Leonhard Euler.

A true leader serves those he leads. - Leonhard Euler

"A true leader serves those he leads."

Leonhard Euler Leadership

Mathematician Swiss 1707–1783

"Read Euler, read Euler, he is the master of us all."

"The beauty of a mathematical proof lies not in its length but in its elegance."

"Life is but a moment, yet mathematics is eternal."

"In mathematics, you don't understand things. You just get used to them."

"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"