Chapter CCXIX: Section CXV: This being so, the pictures that are most valued are for

the most part those by masters of established renown, which are highly or neatly finished, and of a size small enough to admit of their being placed in galleries or saloons, so as to be made subjects of ostentation, and to be easily seen by a crowd. For the support of the fame and value of such pictures, little more is necessary than that they should be kept bright, partly by cleaning, which is incipient destruction, and partly by what is called "restoring," that is, painting over, which is of course total destruction. Nearly all the gallery pictures in modern Europe have been more or less destroyed by one or other of these operations, generally exactly in proportion to the estimation in which they are held; and as, originally, the smaller and more highly finished works of any great master are usually his worst, the contents of many of our most celebrated galleries are by this time, in reality, of very small value indeed.