The heavy roll of the traffic in Oxford Street, audible here, is nothing to them; the struggle for money does not touch them, they let it go by. Nor the many minds searching and re-searching in the great Library, this mental toil is no more to them than the lading of the waggons in the street. Neither the tangible product nor the intellectual attainment is of any value--only the air and light. There are idols in the galleries within upon whose sculptured features the hot Eastern sun shone thousands of years since. They were made by human effort, however mistaken, and they were the outcome of human thought and handiwork. The doves fluttered about the temples in those days, full only of the air and light. They fluttered about the better temples of Greece and round the porticos where philosophy was born. Still only the light, the sunlight, the air of heaven. We labour on and think, and carve our idols and the pen never ceases from its labour; but the lapse of the centuries has left us in the same place. The doves who have not laboured nor travailed in thought possess the sunlight. Is not theirs the preferable portion? The shade deepens as I turn from the portico to the hall and vast domed house of books. The half-hearted light under the dome is stagnant and dead. For it is the nature of light to beat and throb; it has a pulse and undulation like the swing of the sea. Under the trees in the woodlands it vibrates and lives; on the hills there is a resonance of light. It beats against every leaf, and, thrown back, beats again; it is agitated with the motion of the grass blades; you can feel it ceaselessly streaming on your face. It is renewed and fresh every moment, and never twice do you see the same ray. Stayed and checked by the dome and book-built walls, the beams lose their elasticity, and the ripple ceases in the motionless pool. The eyes, responding, forget to turn quickly, and only partially see. Deeper thought and inspiration quit the heart, for they can only exist where the light vibrates and communicates its tone to the soul. If any imagine they shall find thought in many books, certainly they will be disappointed. Thought dwells by the stream and sea, by the hill and in the woodland, in the sunlight and free wind, where the wild dove haunts. Walls and roof shut it off as they shut off the undulation of light. The very lightning cannot penetrate here. A murkiness marks the coming of the cloud, and the dome becomes vague, but the fierce flash is shorn to a pale reflection, and the thunder is no more than the rolling of a heavier truck loaded with tomes. But in closing out the sky, with it is cut off all that the sky can tell you with its light, or in its passion of storm.