In 1879, the family's financial situation improved and, after his Abitur exam, Grabowski studied philosophy and natural science at the University of Breslau in Breslau (now Wrocław).
I 1879 forbedredes familiens finansielle situation, og efter sin studentereksamen kunne Grabowski studere filosofi og naturvidenskab ved Universitetet i Breslau (Wrocław).