Full Idea
It is generally agreed, I think, that the concept of physical necessity, or a law of nature, is fundamental to the theory of causation and, more generally, to the concept of nature.
Gist of Idea
The concept of physical necessity is basic to both causation, and to the concept of nature
Source
Roderick Chisholm (Person and Object [1976], 2.3)
Book Reference
Chisholm,Roderick: 'Person and Object' [Open Court 1976], p.60
A Reaction
This seems intuitively right, but we might be able to formulate a concept of nature that had a bit less necessity in it, especially if we read a few books on quantum theory first.
Related Idea
Idea 15820 A 'law of nature' is just something which is physically necessary [Chisholm]