The requested article about the Cartier Foundation at the Palais Royal could not be accessed due to server restrictions. The original content from Les Echos appears to discuss an exhibition or event related to the Cartier Foundation taking place at the prestigious Palais Royal in Paris.

Unfortunately, the server denied access to the full article with reference number 18.b5382017.1760955598.4b272209. Without access to the original French content, a complete and detailed rewrite cannot be provided.

Readers interested in this topic may need to access the original source directly or seek alternative coverage of the Cartier Foundation's activities at the Palais Royal.