 As a member of a student delegation representing the University of Bucharest, Petrovici participated in the commemoration of the 400th anniversary of Stephen the Great's death, which took place in the then Austrian town of Suceava in summer 1904.He graduated in Philosophy in 1904, with the dissertation "O problemă de filosofie" ("A Philosophy Problem") and became the first home-grown Romanian Doctor of Philosophy in June 1905, with the PhD thesis "Paralelismul psiho-fizic" ("Psychological-physical Parallelism").Petrovici attended philosophy classes by Wilhelm Wundt and Hans Volkelt in Leipzig and by Friedrich Paulsen, Wilhelm Dilthey and Alois Riehl in Berlin during the academic year 1905-1906.