Editing SpheresoftheAether (section)

===Magery===
As TH:RPM Magery, including the skill cap. TH:RPM p 5

Important:
Non-mages can learn Sphere skills and domains, but no higher than SL 12. However, Each level of Magery improves this cap by 1;
e.g., with Magery 4, you can learn Path skills up to 16. This limit does apply to Mages too;

Spheres Adept
Just as important as magery, this advantage is really what separates PC mages from non-PCs.