My Life and Work by Henry Ford and Samuel Crowther
4. Manufacturing is not buying low and selling high. It is the process
of buying materials fairly and, with the smallest possible addition of
cost, transforming those materials into a consumable product and giving
it to the consumer. Gambling, speculating, and sharp dealing, tend only
to clog this progression.
How all of this arose, how it has worked out, and how it applies
generally are the subjects of these chapters.