From his Soviet years, Sidqi was primarily interested in the problem of how one might bring about the transformation of Muslim societies into modern industrialised countries without damaging their traditional social fabric.[5] In his 1940 work "The Islamic Traditions and the Nazi Principles: Can They Agree/Do They Match?" (al-Taqālid al-islāmiyya wa-l-mabādiʾ al-nāziyya: hal tattafiqān?), published in early May of that year,[36][6] Sidqi argued that Nazism was not only diametrically opposed to Islam, and that there could be no accommodation of the Islamic world to the kind of world advocated by Nazi Germany,[34] but that indeed Nazism was antagonistic to Islam.[6] The interaction of the two could only end in a zero-sum game. He thus declares that: