Who said "Perseverance is the companion of all true achievement."?

This quote is attributed to Rubén Darío.

Perseverance is the companion of all true achievement. - Rubén Darío

"Perseverance is the companion of all true achievement."

Rubén Darío Perseverance

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"

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."