Who said "A leader must have the courage to say no."?

This quote is attributed to Benito Juárez.

A leader must have the courage to say no. - Benito Juárez

"A leader must have the courage to say no."

Benito Juárez Leadership

President, Reformer Mexican 1806–1872

"El respeto al derecho ajeno es la paz."

"La reforma es la ley fundamental de nuestro sistema republicano."

"Entre individuos, como entre naciones, el respeto al derecho ajeno es la paz."

"El triunfo de la reacción sería la muerte de la república."

"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"