Book words—words that are found most often in writing but are rarely spoken—change as well but in a somewhat different way. When the communal memory of a word's pronunciation has been lost, or when speakers who have never heard a book word pronounced attempt it, then spelling will play a key role in determining the new pronunciation.

In November 2003, thousands of people in Zoucheng, Shandong province, stormed a government building, smashing windows and office equipment, after a sidewalk vendor was accidentally run over when city officials tried to enforce a new policy against such sales.

The following take-aways are critical when developing corporate strategy.

Before we can destigmatize suicide — assuming that is what we want to do — we must acknowledge that killing oneself is still an intensely stigmatized act...