Sefer HaIkkarim, Maamar 2, Observation

For this reason the reader of a book must be careful, and not be too hasty to criticize the words of the author, until he becomes familiar with the style and method of the book, and has read all that is said on the topic in question in other parts of the book. For sometimes a premise is left out in a given place because it seems obvious, or because it is explained elsewhere, or the omission is intentional, in order to conceal the idea from the reader, whereas the latter thinks that the author has made a mistake, and hastens to criticize him and thinks him a fool or an ignoramus.