He discovered Paul Cézanne at a retrospective at the Musée de l'Orangerie in 1935 and Vincent van Gogh at the Exposition Internationale des Arts et Techniques dans la Vie Moderne in 1937.

During the onset of World War II, Parsus trained as a boilermaker, working in Bayac and joining the Compagnons de France [fr].

Following his release from the workcamp, he created the Théâtre du berger with Yves Joly, Guy Bourguignon [fr], and Georges Croses in 1942.

After World War II, Parsus joined the Jeune Peinture movement and began exhibiting in Paris and Nîmes.

[6] At the end of 2017, he painted works based on the retrospective, such as Giono et les peintres[7] and Apollinaire et Parsus, deux artistes de Nîmes.