Cosmopolite and the third principle

Meaning

The title declares the Cosmopolite’s third principle as a point of departure for the work. That programmatic statement identifies a cited authority and orientation; it does not by itself define the principle completely or establish an external author-name identification.

Later the Cosmopolitain appears in the interpretation of Neptune’s two mines and the name steel. Nuysement rejects ordinary steel as the intended ingredient and explains the resemblance through polished lustre. This is a warning against literalizing a material name, not a warrant to supply a different modern substance. The authority also reappears in the account of Mercury’s generation. The variants Cosmopolite and Cosmopolitain remain retrievable while each claim stays tied to its local explanatory use.