I said that the art of Luca della Robbia possessed in an unusual measure that special characteristic which belongs to all the work- men of his school, a characteristic which, even in the absence of much positive information about their actual history, seems to bring those work-men themselves very near to us. They bear the impress of a personal quality, a profound+ expressiveness, what the French call intimité, by which is meant some subtler sense of originality--the seal on a man's work of what is most inward and peculiar in his moods, and manner of apprehension: it is what we call expression, carried to its highest intensity of degree. That characteristic is rare in poetry, rarer still [72] in art, rarest of all in the abstract art of sculpture; yet essentially, perhaps, it is the quality which alone makes work in the imaginative order really worth having at all. It is because the works of the artists of the fifteenth century possess this quality in an unmistakable way that one is anxious to know all that can be known about them and explain to one's self the secret of their charm.
71. +The Macmillan edition's misprint "profund" is here corrected to "profound," the spelling of the 1901 edition.
[73] CRITICS of Michelangelo have sometimes spoken as if the only characteristic of his genius were a wonderful strength, verging, as in the things of the imagination great strength always does, on what is singular or strange. A certain strangeness, something of the blossoming of the aloe, is indeed an element in all true works of art: that they shall excite or surprise us is indispensable. But that they shall give pleasure and exert a charm over us is indispensable too; and this strangeness must be sweet also--a lovely strangeness. And to the true admirers of Michelangelo this is the true type of the Michelangelesque-- sweetness and strength, pleasure with surprise, an energy of conception which seems at every moment about to break through all the conditions of comely form, recovering, touch by touch, a loveliness found usually only in the simplest natural things--ex forti dulcedo.
In this way he sums up for them the whole character of medieval art itself in that which distinguishes it most clearly from classical work, the presence of a convulsive energy in it, becoming [74] in lower hands merely monstrous or forbidding, and felt, even in its most graceful products, as a subdued quaintness or grotesque. Yet those who feel this grace or sweetness in Michelangelo might at the first moment be puzzled if they were asked wherein precisely such quality resided. Men of inventive temperament-- Victor Hugo, for instance, in whom, as in Michelangelo, people have for the most part been attracted or repelled by the strength, while few have understood his sweetness--have sometimes relieved conceptions of merely moral or spiritual greatness, but with little aesthetic charm of their own, by lovely accidents or accessories, like the butterfly which alights on the blood-stained barricade in Les Misérables, or those sea-birds for whom the monstrous Gilliatt comes to be as some wild natural thing, so that they are no longer afraid of him, in Les Travailleurs de la Mer. But the austere genius of Michelangelo will not depend for its sweetness on any mere accessories like these. The world of natural things has almost no existence for him; "When one speaks of him," says Grimm, "woods, clouds, seas, and mountains disappear, and only what is formed by the spirit of man remains behind"; and he quotes a few slight words from a letter of his to Vasari as the single expression in all he has left of a feeling for nature. He has traced no flowers, like those with which Leonardo stars [75] over his gloomiest rocks; nothing like the fret-work of wings and flames in which Blake frames his most startling conceptions. No forest-scenery like Titian's fills his backgrounds, but only blank ranges of rock, and dim vegetable forms as blank as they, as in a world before the creation of the first five days.