CERTA...? The top of the page is damaged, obscuring the full word. Based on the context of the work, it may have been "CERTAINTY" (Latin: Certitudo) or "A STRUGGLE" (Latin: Certamen).

A manuscript left brace groups the following two lines:
1. On the search for Perfection original: "de Perfectionis investigatione"
2. On the discovery of Perfection original: "de Perfectionis inventione"

8th Century original: "8 Cen"; this is a later addition, possibly by a librarian or collector attempting to date the manuscript or referencing a specific collection.

will

H. S. These initials likely indicate a previous owner or a library shelf mark.

Perfection from "Perfectionis"; in this context, it refers to a state of moral or spiritual completeness., Search from "investigatione"; implies a systematic inquiry or study., Discovery from "inventione"; the act of finding or achieving the goal of the search.