But the protractive trials of great Jove To find persistive constancy in men; The fineness of which metal is not found In fortune's love? For then the bold and coward, The wise and fool, the artist and unread, The hard and soft, seem all affin'd and kin. But in the wind and tempest of her frown Distinction, with a broad and powerful fan, Puffing at all, winnows the light away; And what hath mass or matter by itself Lies rich in virtue and unmingled.