Who said "To be alive is to struggle; to struggle is to live."?

This quote is attributed to Crazy Horse.

To be alive is to struggle; to struggle is to live. - Crazy Horse

"To be alive is to struggle; to struggle is to live."

Crazy Horse Life

Military Warrior Native American 1840–1877

"A warrior's heart knows no defeat."

"The earth is the mother of all people."

"We did not ask you white men to come here. The Great Spirit gave us this country as a home."

"Behold, I am poor and naked, but I am the chief of the nation."

"Life is meant to be lived with passion."

"Life is what happens when you're busy making other plans."

"Life is a journey, not a destination."

"Life's too short for regrets."