Navier appointed him as one of his assistants at the École Polytechnique and this connection was to see Navier become an ardent supporter of the ideas of Comte and Saint-Simon. Navier believed in an industrialised world in which science and technology would solve most of the problems.
Navier hinirang siya bilang isa sa kanyang assistants sa École Polytechnique at koneksyon na ito ay upang makita ang Navier maging isang ardent tagataguyod ng mga ideya ng Comte at Saint-Simon. Navier sumampalataya sa isang industrialised sa mundo na agham at teknolohiya ay malutas ang karamihan ng mga problema.