The lesson from two lemonade stands

The first stand is run by two kids. They use Countrytime lemonade, paper cups and a bridge table. It's a decent lemonade stand, one in the long tradition of standard lemonade stands. It costs a dollar to buy a cup, which is a pretty good price, considering you get both the lemonade and the satisfaction of knowing you supported two kids.

The other stand is different. The lemonade is free, but there's a big tip jar. When you pull up, the owner of the stand beams as only a proud eleven year old g...