"Titian's supremacy above all the other Venetians, except Tintoret[to] and Veronese, consists in the firm truth of his portraiture, and more or less masterly understanding of the nature of stones, trees, men, or whatever else he took in hand to paint; so that, without some correlative understanding in the spectator, Titian's work, in its highest qualities, must be utterly dead and unappealing to him."