Full Idea
The supposition of recurrence is wholly irrelevant to the meaning of cause: that supposition is relevant only to the meaning of law.
Gist of Idea
Recurrence is only relevant to the meaning of law, not to the meaning of cause
Source
Curt Ducasse (Nature and Observability of Causal Relations [1926], §4)
Book Reference
'Causation', ed/tr. Sosa,E. /Tooley,M. [OUP 1993], p.129
A Reaction
This sounds plausible, especially if our notion of laws of nature is built up from a series of caused events. But we could just have an ontology of 'similar events', out of which we build laws, and 'causation' could drop out (á la Russell).