Prejudice, The SneetchesI find this book to be utterly brilliant. It really shows the roots of prejudice and how small things that shouldn't matter often give people a sense of superiority over others.
"Now the star bellied Sneetches had bellies with stars, the plain bellied Sneetches had none upon thars. Those stars weren't so big, they were really so small. You might think such a thing, wouldn't matter at all. But because they had stars, all the star-bellied Sneetches would brag, we're the best kind of Sneetche on the beaches."
Eventually this guy comes to town and offers the starless Sneetches stars on their bellies for three dollars, which they do. The first star Sneetches didin't like it at all and the same guy offered them ten dollars to get the star off, so they could be different. And they'd keep their noses held high, without any stars. Then the new Sneetches with stars would do the same thing and eventually everyone was getting stars on and off and no one could tell either apart. This happened until they ran out of money and then the guy left. That's when they finally resolved that the stars really meant nothing, and Sneetches were Sneetches.
Here's a youtube link to someone reading the story: http://www.youtube.com/watch?v=XMolzESn4oI