48. It is hard upon you, doubtless, considering the quantity of time you must nowadays spend in trying which can hit balls farthest. So I will put the task into the simplest form I can.
Here are the names of the twenty-five men,[I] and opposite each, a line indicating the length of his life, and the position of it in his century. The diagram still, however, needs a few words of explanation. Very chiefly, for those who know anything of my writings, there is needed explanation of its not including the names of Titian, Reynolds, Velasquez, Turner, and other such men, always reverently put before you at other times.
They are absent, because I have no fear of your not looking at these. All your lives through, if you care about art, you will be looking at them. But while you are here at Oxford, I want to make you learn what you should know of these earlier, many of them weaker, men, who yet, for the very reason of their greater simplicity of power, are better guides for you, and of whom some will remain guides to all generations. And, as regards the subject of our present course, I have a still more weighty reason;—Vandyke, Gainsborough, Titian, Reynolds, Velasquez, and the rest, are essentially portrait painters. They give you the likeness of a man: they have nothing to say either about his future life, or his gods. 'That is the look of him,' they say: 'here, on earth, we know no more.'
49. But these, whose names I have engraved, have something to say—generally much,—either about the future life of man, or about his gods. They are therefore, literally, seers or prophets. False prophets, it may be, or foolish ones; of that you must judge; but you must read before you can judge; and read (or hear) them consistently; for you don't know them till you have heard them out. But with Sir Joshua, or Titian, one portrait is as another: it is here a pretty lady, there a great lord; but speechless, all;—whereas, with these twenty-five men, each picture or statue is not merely another person of a pleasant society, but another chapter of a Sibylline book.
50. For this reason, then, I do not want Sir Joshua or Velasquez in my defined group; and for my present purpose, I can spare from it even four others:—namely, three who have too special gifts, and must each be separately studied—Correggio, Carpaccio, Tintoret;—and one who has no special gift, but a balanced group of many—Cima. This leaves twenty-one for classification, of whom I will ask you to lay hold thus. You must continually have felt the difficulty caused by the names of centuries not tallying with their years;—the year 1201 being the first of the thirteenth century, and so on. I am always plagued by it myself, much as I have to think and write with reference to chronology; and I mean for the future, in our art chronology, to use as far as possible a different form of notation.
51. In my diagram the vertical lines are the divisions of tens of years; the thick black lines divide the centuries. The horizontal lines, then, at a glance, tell you the length and date of each artist's life. In one or two instances I cannot find the date of birth; in one or two more, of death; and the line indicates then only the ascertained[J] period during which the artist worked.
And, thus represented, you see nearly all their lives run through the year of a new century; so that if the lines representing them were needles, and the black bars of the years 1300, 1400, 1500 were magnets, I could take up nearly all the needles by lifting the bars.
52. I will actually do this, then, in three other simple diagrams. I place a rod for the year 1300 over the lines of life, and I take up all it touches. I have to drop Niccola Pisano, but I catch five. Now, with my rod of 1400, I have dropped Orcagna indeed, but I again catch five. Now, with my rod of 1500, I indeed drop Filippo Lippi and Verrocchio, but I catch seven. And here I have three pennons, with the staves of the years 1300, 1400, and 1500 running through them,—holding the names of nearly all the men I want you to study in easily remembered groups of five, five, and seven. And these three groups I shall hereafter call the 1300 group, 1400 group, and 1500 group.