_The Uncommercial Traveller_ is a collection of Dickens's memories rather than of his literary purposes; but it is due to him to say that memory is often more startling in him than prophecy in anybody else. They have the character which belongs to all his vivid incidental writing: that they attach themselves always to some text which is a fact rather than an idea. He was one of those sons of Eve who are fonder of the Tree of Life than of the Tree of Knowledge--even of the knowledge of good and of evil. He was in this profoundest sense a realist. Critics have talked of an artist with his eye on the object. Dickens as an essayist always had his eye on an object before he had the faintest notion of a subject. All these works of his can best be considered as letters; they are notes of personal travel, scribbles in a diary about this or that that really happened. But Dickens was one of the few men who have the two talents that are the whole of literature--and have them both together. First, he could make a thing happen over again; and second, he could make it happen better. He can be called exaggerative; but mere exaggeration conveys nothing of his typical talent. Mere whirlwinds of words, mere melodramas of earth and heaven do not affect us as Dickens affects us, because they are exaggerations of nothing. If asked for an exaggeration of something, their inventors would be entirely dumb. They would not know how to exaggerate a broom-stick; for the life of them they could not exaggerate a tenpenny nail. Dickens always began with the nail or the broom-stick. He always began with a fact even when he was most fanciful; and even when he drew the long bow he was careful to hit the white.