James Clark McReynolds,
St. Louis O'Fallon Railway Company v…
“ In railroading, as in other fields of business, the great rise in the cost of labor and of supplies, and the need of better service, have stimulated, not only inventions, but also their utilization. Through technological advances, instruments of transportation with largely increased efficiency and economy have been developed. The price of lower operating costs is the scrapping of those parts of the plant which progress in the art render obsolete. ”
