, aesthetics of this kind wins respectability at a
price, for it loses much of its distinctness as an autonomous area of philosophy and is in
danger too of losing touch with the art forms it purports to analyse and the practitioners
of those art forms.

http://www.british-aesthetics.org/uploads/Peter LAMARQUE.pdf

As Frege and Russell were attempting to "tidy up" the logical foundations of mathematics in the late nineteenth and early twentieth centuries, they both sensed a need for rigorous and semantic analysis of a much more wide-ranging sort. The effect of their development of this style of analysis was to establish the philosophy of language as an autonomous area of inquiry, and, to a large extent, to define its subject matter