I know that this is in great part idiosyncrasy; and that I must not trust to my own feelings, in this respect, as representative of the modern landscape instinct:  yet I know it is not idiosyncrasy, in so far as there may be proved to be indeed an increase of the absolute beauty of all scenery in exact proportion to its mountainous character, providing that character be healthily mountainous.  I do not mean to take the Col de Bonhomme as representative of hills, any more than I would take Romney Marsh as representative of plains; but putting Leicestershire or Staffordshire fairly beside Westmoreland, and Lombardy or Champagne fairly beside the Pays de Vaud or the Canton Berne, I find the increase in the calculable sum of elements of beauty to be steadily in proportion to the increase of mountainous character; and that the best image which the world can give of Paradise is in the slope of the meadows, orchards, and corn-fields on the sides of a great Alp, with its purple rocks and eternal snows above; this excellence not being in any wise a matter referable to feeling, or individual preferences, but demonstrable by calm enumeration of the number of lovely colours on the rocks, the varied grouping of the trees, and quantity of noble incidents in stream, crag, or cloud, presented to the eye at any given moment.

For consider, first, the difference produced in the whole tone of landscape colour by the introductions of purple, violet, and deep ultramarine blue, which we owe to mountains.  In an ordinary lowland landscape we have the blue of the sky; the green of grass, which I will suppose (and this is an unnecessary concession to the lowlands) entirely fresh and bright; the green of trees; and certain elements of purple, far more rich and beautiful than we generally should think, in their bark and shadows (bare hedges and thickets, or tops of trees, in subdued afternoon sunshine, are nearly perfect purple, and of an exquisite tone), as well as in ploughed fields, and dark ground in general.  But among mountains, in addition to all this, large unbroken spaces of pure violet and purple are introduced in their distances; and even near, by films of cloud passing over the darkness of ravines or forests, blues are produced of the most subtle tenderness; these azures and purples[25] passing into rose-colour of otherwise wholly unattainable delicacy among the upper summits, the blue of the sky being at the same time purer and deeper than in the plains.  Nay, in some sense, a person who has never seen the rose-colour of the rays of dawn crossing a blue mountain twelve or fifteen miles away, can hardly be said to know what tenderness in colour means at all; bright tenderness he may, indeed, see in the sky or in a flower, but this grave tenderness of the far-away hill-purples he cannot conceive.