School-right and sons of philosophy

Meaning

At the end of the initial J. J. F. discourse, the writer says he has displayed his school-right to the sons of natural Hermetic philosophy. The phrase claims standing or competence before an imagined community qualified to recognise the exposition. It is not a documented university credential in this passage. “Sons” is a lineage and membership image: the recipients belong to the tradition by appropriate understanding. The address also limits the apparent audience of disclosure despite the discourse’s broader claims about nature being available to poor and rich.