Letters from a Self-Made Merchant to His Son Being the Letters written by John Graham, Head of the House of Graham & Company, Pork-Packers in Chicago, ... known to his intimates as "Piggy."

by George Horace Lorimer

Never learn anything about your men except from themselves. A good manager needs no detectives, and the fellow who can’t read human nature can’t manage it. The phonograph records of a fellow’s character are lined in his face, and a man’s days tell the secrets of his nights.