J. Hector St. Jean de Crevecoeur's "Letters from an American Farmer"

edifying

ed·​i·​fy·​ing ˈe-də-ˌfī-iŋ 
Adjective
: instructive or informative in a way that improves the mind or character
an edifying discussion
Much of Mr. Kernan's scholarship is impressive, and many of his thoughts on the history of language and literature are quite edifying.—Joe Queenan

Source