  Scientific naturalism as here defined encompasses only natural science (and likewise for scientific-cum-mathematical naturalism). Broader naturalisms take in not just traditional natural science but also some of the other sciences: perhaps all of social science, perhaps only some of it, perhaps linguistics, perhaps cognitive science. Note that in later writings Quine himself adopts a broad version of naturalism (1995, 49). Penelope Maddy has more recently made it clear that the form of scientific naturalism she espouses—‘Second Philosophy’ as she now prefers to call it—is very broad indeed, taking in not only the natural sciences but also psychology, linguistics, sociology, etc. (2007, 2).