From the "$30,000 an hour" chapter of Confessions of a Public Speaker by Scott Berkun:
...the average adult on planet Earth earns $8,200 a year (U.S. dollars), and the average American makes about $50,000 ... Almost half of the world's population doesn't have clean running water or reliable electricity, no matter how well they are paid. From a planetary view, if you're reading this book indoors, under an electric light, within walking distance of a stocked refrigerator or a take-out delivery menu you can afford to order from, and rarely find yourself worrying about malaria or dysentery, you are doing quite well.
These are true words, readers, but when times are tough, it is not always easy to remember how fortunate we are.