He believed agriculture to be the basis of wealth, and followed the physiocrat movement that advocated an economy based upon it just as Marquis de Mirabeau did.

He followed the example of Baron de La Tour-d'Aigues, who was interested in land development and had one of the largest libraries of the time on this subject.

d'Hupay challenged the display of wealth of Bruny, and other barons, because he, as a follower of Rousseau, wanted a simpler more rural life away from the tumult of cities.

During his life, Victor d'Hupay divided his time between La Tour-d'Aigues, Aix-en-Provence and the neighbouring village of Fuveau, to the south of Montagne Sainte-Victoire.

Once his country house in Fuveau was restored, he published his first book, Projet de communauté philosophe, which advocated the idea of living in a sort of commune.