Before their ideological split, Titel Petrescu had commended "my friend Ștefan Voitec" for his work in collecting "socialist literature and old documents". Tismăneanu notes that Voitec was once regarded as the would-be theoretician of Romanian moderate socialism, "one who was so very well acquainted with the works of Karl Kautsky and Eduard Bernstein", and therefore fully educated about the critique of communism from the left. The same issue had been raised in 1963 by his exiled former employer, Pamfil Șeicaru: "Voitec was well trained in Marxist sociology and knew the history of Soviet Russia.
Prior to their ideological disagreement, Titel Petrescu commended "my friend Ștefan Voitec" for his efforts in collecting "socialist literature and old documents". Tismăneanu mentions that Voitec was previously seen as the potential theoretician of Romanian moderate socialism, someone who was deeply familiar with the works of Karl Kautsky and Eduard Bernstein, and thus well-versed in critiques from the left. This same point had been made by his exiled former employer, Pamfil Șeicaru, in 1963: "Voitec was extensively trained in Marxist sociology and knew the history of Soviet Russia."