"A bird flies with its wings towards its nest, The wings of a man are his aspiration and aim. If a lover be befouled with good and evil Yet regard not these; regard rather his aspiration, Though a falcon be all white and unmatched in form, If he hunts mice, he is contemptible and worthless, And if an owl fixes his affection on the king, He is a falcon in reality; regard not his outward form."