Repose, as it is expressed in material things, is either a simple appearance of permanence and quietness, as in the massy forms of a mountain or rock, accompanied by the lulling effect of all mighty sight and sound, which all feel and none define, (it would be less sacred if more explicable,) [Greek: heudousin dioreon koruphai te kai pharanges], or else it is repose proper, the rest of things in which there is vitality or capability of motion actual or imagined; and with respect to these the expression of repose is greater in proportion to the amount and sublimity of the action which is not taking place, as well as to the intensity of the negation of it. Thus we speak not of repose in a stone, because the motion of a stone has nothing in it of energy nor vitality, neither its repose of stability. But having once seen a great rock come down a mountain side, we have a noble sensation of its rest, now bedded immovably among the under fern, because the power and fearfulness of its motion were great, and its stability and negation of motion are now great in proportion. Hence the imagination, which delights in nothing more than the enhancing of the characters of repose, effects this usually by either attributing to things visibly energetic an ideal stability, or to things visibly stable an ideal activity or vitality. Hence Wordsworth, of the cloud, which in itself having too much of changefulness for his purpose, is spoken of as one "that heareth not the loud winds when they call, and moveth altogether, if it move at all." And again of children, which, that it may remove from them the child restlessness, the imagination conceives as rooted flowers "Beneath an old gray oak, as violets, lie." On the other hand, the scattered rocks, which have not, as such, vitality enough for rest, are gifted with it by the living image: they "lie couched around us like a flock of sheep." Sec. 3. The necessity to repose of an implied energy. Thus, as we saw that unity demanded for its expression what at first might have seemed its contrary (variety) so repose demands for its expression the implied capability of its opposite, energy, and this even in its lower manifestations, in rocks and stones and trees. By comparing the modes in which the mind is disposed to regard the boughs of a fair and vigorous tree, motionless in the summer air, with the effect produced by one of these same boughs hewn square and used for threshold or lintel, the reader will at once perceive the connection of vitality with repose, and the part they both bear in beauty. Sec. 4. Mental repose, how noble.