This London City, with all of its houses, palaces, steam-engines, cathedrals, and huge immeasurable traffic an tumult, what is it but a Thought, but millions of Thoughts made into One-a huge immeasurable Spirit of a Thought, embodied in brick, in iron, smoke, dust, Palaces, Parliaments, Hackney Coaches, Katherine Docks, and the rest of it! Not a brick was made but some man had to think of the making of that brick.