gnomic: 1. (Literary & Literary Critical Terms) consisting of, containing, or relating to gnomes or aphorisms. 2. (Literary & Literary Critical Terms) of or relating to a writer of such sayings.
In this instance, gnomic is used to refer to a writer of aphorisms. Of course, full understanding is here contingent upon an assumption one is familiar with the meaning of "aphorism," which, as an admirer of The Sage of Potato Hill, I am.
Panglossian: Blindly or naively optimistic.
Thank you, thefreedictionary.com, for the lexicographic enlightenment, without which I would be too shallow, vapid, and stupid to continue reading The Shallows to find out just how shallow, vapid, and stupid the internet is making me.