At the same time, and step by step with this increase in the definition and intensity of what we feel which accompanies our growing age, another change takes place in the sphere of intellect, by which all things are transformed and seen through theories and associations as through coloured windows. We make to ourselves day by day, out of history, and gossip, and economical speculations, and God knows what, a medium in which we walk and through which we look abroad. We study shop windows with other eyes than in our childhood, never to wonder, not always to admire, but to make and modify our little incongruous theories about life. It is no longer the uniform of a soldier that arrests our attention; but perhaps the flowing carriage of a woman, or perhaps a countenance that has been vividly stamped with passion and carries an adventurous story written in its lines. The pleasure of surprise is passed away; sugar-loaves and water-carts seem mighty tame to encounter; and we walk the streets to make romances and to sociologise. Nor must we deny that a good many of us walk them solely for the purposes of transit or in the interest of a livelier digestion. These, indeed, may look back with mingled thoughts upon their childhood, but the rest are in a better case; they know more than when they were children, they understand better, their desires and sympathies answer more nimbly to the provocation of the senses, and their minds are brimming with interest as they go about the world.