A poem is learned by heart and then not again repeated. We will suppose that after a half year it has been forgotten: no effort of recollection is able to call it back again into consciousness. ↗
A poet ought not to pick nature's pocket. Let him borrow, and so borrow as to repay by the very act of borrowing. Examine nature accurately, but write from recollection, and trust more to the imagination than the memory. ↗