I once asked Stanley Marcus, legendary retailer and chairman emeritus of Neiman-Marcus, “What do the wealthy, powerful, and famous people you know have in common?”

“They all have 24-hour days,” replied the man who counted many of these individuals as personal friends.

Then he explained: “The world has expanded in almost all directions, but we still have a 24-hour day. The most successful people and the most unsuccessful people all receive the same ration of hours each day.” …