Talent is that which is in a man's power; genius is that in whose power a man is.
Source: Rousseau and the Sentimentalists, Literary Essays, vol. 2, 1870-1890.
-- James Russell Lowell, (Feb 22 1819-1891), US poet, critic, editor, diplomat; He was the first editor of Atlantic Monthly, 1857-61; ambassador to Spain and Great Britain, 1877-85.