Between 1907 and 1914, he lived in Montparnasse sharing to the full in the bohemian life of Paris, mixing with the Polish artist living there, many of whom were members of the Young Poland movement. In 1911 he was a founder, with the sculptor of the Association of Polish Artists ("Towarzystwo Artystów Polskich"). In 1912 he formed the "cercle parisien des sciences militaires" with , Andrzej Strug and others. The next year this group joined the main Riflemen's Association ("Związek Strzelecki "Strzelec""), where he met Józef Piłsudski in December 1913.