Doubt not, O poet, but persist. Say ‘It is in me, and shall out.’ Stand there, balked and dumb, stuttering and stammering, hissed and hooted, stand and strive, until at last rage draw out of thee that dream-power which every night shows thee is thine own; a power transcending all limit and privacy, and by virtue of which a man is the conductor of the whole river of electricity. Nothing walks, or creeps, or grows, or exists, which must not in turn arise and walk before him as exponent of his meaning. Comes he to that power, his genius is no longer exhaustible. All the creatures by pairs and by tribes pour into his mind as into a Noah’s ark, to come forth again to people a new world. This is like the stock of air for our respiration or for the combustion of our fireplace; not a measure of gallons, but the entire atmosphere if wanted. And therefore the rich poets, as Homer, Chaucer, Shakspeare, and Raphael, have obviously no limits to their works except the limits of their lifetime, and resemble a mirror carried through the street, ready to render an image of every created thing.