I have noticed that the field of linguistics is very underdeveloped with respect to its foundation. In the other fields that I am interested in, I seem to have a never-ending supply of books and articles to read. However, in linguistics, I struggle to find any worthwhile books at all. Although I disagree with a lot of his conclusions, "Women, Fire, and Dangerous Things" is a very worthwhile book. Can any one recommend to me some more linguistics books that have a similar focus? I am mainly interested in the foundations of language (which is seems to be the focus of "Women, Fire, and Dangerous Things".