Of all the stuff I wish I'd learned in school, one subject ranks highest: rhetoric. William Shakespeare learned to argue for and against a certain point while still in secondary school. To my disappointment, this subject is still not taught in schools, although it's one of the few subjects that's useful to every person in every walk of life. So why not teach it? I don't know. Cynics might say that it is beneficial to certain groups in our society that not too many people know how to reason. Whatever the reason, it is a serious wrong to be righted.