Ralph Waldo Emerson Quote

Great is the art,
Great be the manners, of the bard.
He shall not his brain encumber
With the coil of rhythm and number;
But, leaving rule and pale forethought,
He shall aye climb
For his rhyme.
"Pass in, pass in," the angels say

The Works of Ralph Waldo Emerson: Comprising His Essays, Lectures, Poems, and Orations (ed. 1883)