As I rode back to Detroit, a vision of Henry Ford's industrial empire kept passing before my eyes. In my ears, I heard the wonderful symphony which came from his factories where metals were shaped into tools for men's service. It was a new music, waiting for the composer with genius enough to give it communicable form.

I thought of the millions of different men by whose combined labor and thought automobiles were produced, from the miners who dug the iron ore out of the earth to the railroad men and teamsters who brought the finished machines to the consumer, so that man, space, and time might be conquered, and ever-expanding victories be won against death.

The first thing I encountered on entering the museum was the earliest steam engine built in England. As I walked on, marveling at each successive mechanical wonder, I realized that I was witnessing the history of machinery, as if on parade, from its primitive beginnings to the present day, in all its complex and astounding elaborations.

Henry Ford's so-called "pile of scrap iron" was organized not only with scientific clarity but with impeccable, unpretentious good taste. Relics of the times associated with each machine were displayed beside it. To me, Greenfield Village, inside and out, was a visual feast.

Not long after coming to Detroit, I heard of a museum of machinery in Dearborn which had been set up by Henry Ford but which, at that time, had not acquired its present popularity. The well-to-do people of fashionable Grosse Pointe and the Detroit workers as well ignored Greenfield Village, as this museum area was called. Almost nobody had any use for it, and I found out about it only through hearing people laugh at "old man Ford" for "wasting" millions on his "pile of scrap iron." These gibes excited my curiosity, and I asked my friends how I could arrange a visit and what was the earliest time I might go.

"Any time you like," they answered, not troubling to conceal their disdain.

From seven in the morning until half past one the next morning -- that's quite a record time for a visitor to stay at a museum," [Henry Ford] continued. "It proves that you may be even more interested in mechanics than I am. And you almost have to be a fanatic to compete with me. That's certainly something!" he exclaimed, grinning broad approval of our common bond.

I spent the two and one-half months between my meeting with the Art Commission and the beginning of my actual mural work in soaking up impressions of the productive activities of the city. I studied industrial scenes by night as well as by day, making literally thousands of sketches of towering blast furnaces, serpentine conveyor belts, impressive scientific laboratories, busy assembling rooms; also of precision instruments, some of them massive yet delicate; and of the men who worked them all. I walked for miles through the immense workshops of the Ford, Chrysler, Edison, Michigan Alkali, and Parke-Davis plants. I was afire with enthusiasm. My childhood passion for mechanical toys had been transmuted to a delight in machinery for its own sake and for its meaning to man -- his self-fulfillment and liberation from drudgery and poverty. That is why now I placed the collective hero, man-and-machine, higher than the old traditional heroes of art and legend. I felt that in the society of the future as already, to some extent, that of the present, man-and-machine would be as important as air, water, and the light of the sun.

This was the "philosophy," the state of mind in which I undertook my Detroit frescoes.

In my previous murals, I had tried to achieve a harmony in my painting with the architecture of the building. But to attempt such a harmony in the garden of the Institute would have defeated my purposes. For the walls here were of an intricate Italian baroque style, with little windows, heads of satyrs, doorways, and sculpturesque mouldings. It was within such a frame that I was to represent the life of an age which had nothing to do with baroque refinements -- a new life which was characterized by masses, machines, and naked mechanical power. So I set to work consciously to over-power the ornamentation of the room.