A written sentence calls upon its author to say something, upon its reader to know the import of what is said. And when an author and reader are struggling with semantic meaning, they are engaged in the most serious challenge to the intellect. This is especially the case with the act of reading, for authors are not always trustworthy. They lie, they become confused, they over-generalize, they abuse logic and, sometimes, common sense. The reader must come armed, in a serious state of intellectual readiness.