William Blake

From a certain point of view, artists may be regarded as divisible into three classes: those who regard the material world as an unquestionable solid reality, whose accurate representation is the one mission of Art; those to whom it is a mere hieroglyphic of an essential existence transcending it; and those who, uniting the two conceptions, are at the same time idealists and realists. The greatest artists generally belong to the latter class, and with reason, for a literal adherence to matter of fact almost implies defect of imagination; while an extravagant idealism may be, to say the least, a convenient excuse for defects of technical skill. It is difficult to know whether to class the works of the very greatest artists as realistic or idealistic. Take Albert Dürer's Melancholia. It is a hieroglyph, a symbol, an expression of something too intense to be put into words; a delineation of what the painter beheld with the inner eye alone. Yet every detail is as correct and true to fact as the most uninspired Dutchman could have made it. Take Titian's Bacchus and Ariadne, and observe how separate details which the artist may have actually noticed, are combined into a whole which has never been beheld, save by the spiritual vision, since the last thyrsus was brandished by the last Mænad. Yet, though the creators of such scenes are the greatest, some realists, such as Velasquez, have in virtue of surpassing technical execution asserted a nearly equal rank.