Now that I've posted the above I have to point out an error - Bill Gates did NOT include this in a speech to a high school or any other school. Honestly, can you see Bill Gates speaking to an auditorium of high schoolers? Harvard, Yale, sure, but high school?
In reality, it's the work of author Charles Sykes. Sykes has authored several books about the dumbing down of the American educational system.
For more, go to http://www.snopes.com/politics/soapbox/schoolrules.asp