There is a certain irony in the fact that the countless facilities that are available today for learning every language imaginable are not enough to understand them in depth, since, after a certain level, to understand them is to understand their difficulties. In other words: the countless and valuable incentives for learning hardly allow the student to go beyond the surface of the language studied; if he wants to do so, he has to abandon them and face the difficult, using the most archaic processes, although they are proven to be essential. There is no way out: there comes a time when it is necessary to put aside the jokes and sink into the difficult originals.