The best work on defining what your business is. A must listen and relisten for you to stay focused for success. An increasing challenge in our world of so many tempting choices.

The details differ slightly, but the story in its telling is always the same: Ninety of so students sit nervously awaiting the start of their first marketing class. At the appointed time, not a moment more or less, a slight man with bushy eyebrows and an impressive mustache enters the room, slaps down his papers and fixes his audience with a piercing gaze before choosing one unfortunate soul: “Mr. Brown, Begin!” Startled, Mr. Brown launches into a halting rehash of the day’s assignment bef...