Who said "A dreamer without action is merely a man asleep."?

This quote is attributed to Sitting Bull.

A dreamer without action is merely a man asleep. - Sitting Bull

"A dreamer without action is merely a man asleep."

Sitting Bull Dreams

Military Chief Native American 1831–1890

"Beware of the man who does not talk, and smiles."

"I would like to die, but there is no day set for my death."

"A warrior's heart knows no fear."

"Let us put our minds together and see what life we can create for our children."

"This is going to be a great show!"

"Dreams are what make life worth living."

"Never stop dreaming big."

"Dreams are what keep us going."