

Sorry, by documented, I mean that François Bourgeon did a lot of medieval and artistic research to produce those books (as always). But you are correct, his work is also analyzed by scholars and teachers, first among them is Michel Thiébaut with “Dans le sillage des sirènes”.
We also have a similar wording “Le tout est plus que la somme de ses parties.”. We usually attribute this saying to Aristotle (with some variations)
Country artists. Even Dolly Parton and Johnny Cash are unknown to most of Europe.