The British philosopher and theorist of conceptual art Peter Osborne suggests that among the many factors that influenced the gravitation toward language-based art, a central role for conceptualism came from the turn to linguistic theories of meaning in both Anglo-American analytic philosophy, and structuralist and post structuralist Continental philosophy during the middle of the twentieth century. This linguistic turn "reinforced and legitimized" the direction the conceptual artists took. Osborne also notes that the early conceptualists were the first generation of artists to complete degree-based university training in art. Osborne later made the observation that contemporary art is "post-conceptual" in a public lecture delivered at the Fondazione Antonio Ratti, Villa Sucota in Como on July 9, 2010. It is a claim made at the level of the ontology of the work of art (rather than say at the descriptive level of style or movement).