Thus, there is a grammar of chemistry or music as well as a grammar of the natural languages. According to this view, the science teacher instructs students in the appropriate use of the elements or categories of his discipline in a fashion analogous to that of the language teacher since the science teacher is also a kind of language teacher awakening his students to the peculiar vocabulary of his science. Logic is the art of argumentation, as necessary for mathematics as for making sense of a novel. Rigorous thinking follows general lines in any rational endeavor. Skill in practice of scientific logic prepares the student to think about politics or computers.
Logic is the art of producing and evaluating universals.
No serious study in any field can do without these most general concepts. Finally, rhetoric is the art of persuasive speech. Properly understood, the scientist who subjects his hypothesis to experiment is a kind of rhetorician. The rhetorical art of making analogies employs language to refer to things in the only way in which humans seem to be able to refer to things - this is knowable since it is like that which is already known. Thus, we learn and convince others of the value of what we have studied.