Who said "A leader must serve those he leads."?

This quote is attributed to Giambattista della Porta.

A leader must serve those he leads. - Giambattista della Porta

"A leader must serve those he leads."

Giambattista della Porta Leadership

Dramatist Scientist Polymath Italian 1535–1615

"Nature is the art of God."

"Knowledge is power, but enthusiasm pulls the switch."

"The greatest power is the power of imagination."

"Life is a stage, and we are merely players upon it."

"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"