Who said "War proves that civilization has much to learn."?

This quote is attributed to Rubén Darío.

War proves that civilization has much to learn. - Rubén Darío

"War proves that civilization has much to learn."

Rubén Darío War

Poet Nicaraguan 1867–1916

"I am my own road"

"I seek the divine in all things"

"The poet is a light and a flame"

"To be a poet is to possess wings"

"Some battles are worth fighting."

"Sometimes you have to become the monster to stop the monsters."

"Skynet sent me back through time to kill you."

"War teaches us the value of peace."