During periods of great change, answers don't last very long but a question is worth a lot. The word question is derived from the Latin quaerere (to seek), which is the same root as the word quest. A creative life is a continued quest, and good questions are useful guides. We have found that the most useful questions are open-ended; they allow a fresh, unanticipated answer to reveal itself. These are the kind of questions children aren't afraid to ask. They seem naive at first. But think how different our lives would be if certain questi…