Who said "It is the duty of every citizen to be intelligent."?

This quote is attributed to John D. Rockefeller.

It is the duty of every citizen to be intelligent. - John D. Rockefeller

"It is the duty of every citizen to be intelligent."

John D. Rockefeller Education

Oil Tycoon American 1839–1937

"Don't be afraid to give up the good to go for the great."

"The best philanthropy is constantly in search of the finalities which will assist in making good citizens."

"I believe the power to make money is a gift from God."

"Pray every single day."

"Education opens doors."

"Education opens doors to endless possibilities."

"I ain't got the education you got, bub."

"You can't put a price on history."