Thesis 13.5
Latin
De nulla re an existat potest quaerere aliquis artifex specialis.
English
No particular science can inquire, of any given thing, whether it exists.
The Latin admits two readings of 'artifex specialis': a particular science or discipline (paralleling 7.14, that no science proves that its own subject exists), or, as Farmer renders it, 'a special creator' (a question about a divine agent) at farmer1998:14273. This translation follows the first reading; the crux is not resolved here.