 Michel Pinçon and Monique Pinçon-Charlot studied the lifestyle of the French bourgeoisie, and how they boldly guard their world from the "nouveau riche", or newly rich.In the French language, the term "bourgeoisie" almost designates a caste by itself, even though social mobility into this socio-economic group is possible.Nevertheless, the "bourgeoisie" is differentiated from "la classe moyenne", or the middle class, which consists mostly of white-collar employees, by holding a profession referred to as a "profession libérale", which "la classe moyenne", in its definition does not hold.