them. The limit, in fact, that is set upon nature is only the supernatural; or (if perhaps it is agreeable to set other limits above it) it should be called the limit that is by far the most excellent. Within these limits lies all the glory of the sciences which are commonly called active. Finally, this is the genuine mother and queen of the sciences, such things as are indeed sciences and named such. Now of principles, and reasonings, and the conclusions that come from them, and of experience, and