When Wit is talking to Shalam on Kholinar for the first time (in the tavern), he says something that caught my ear: As I do not have the book now, I will not write it verbatim
Me and Wisdon are, often, at cross purposes.
And I still did not learn the language she speaks
It looked to me that he was talking about a person (or shardic entity... you get my drift).
Do we know about a Wisdom Shard?