We need "less attention to disciplinary boundaries, not a more sharply demarcated domain of our own where we rule as sovereigns."

In this Scholium [to the definition in the Principia--ES]Newton steps back and discusses the concepts of space and time that are, in his view, requisite for making sense of the laws of physics. This sort of question is the sort that we now recognize as a philosophical question, and much of the current discussions in the philosophy of space and time trace their origins to this issues raised in Newton’s Scholium, which is so widely quoted in the philosophical literature on space and time that I suspect that most philosophers who work in that area know it by heart. Wayne Myrvold

Myrvold, a distinguished philosopher of physics, has a sensible piece on the dust-up between Lawrence Krauss and Dave Albert; Myrvold also corrects a lot of silly things that have been said about the history of physics along the way.