Hitler was highly secretive - not least about his personal life, his background, and his family.

The repeated claim before the 'seizure of power' - that the NSDAP, as a national social-revolutionary movement, and not simply another political party... would create new bonds of unity through its elimination and transcending of the party system, was highly attractive and conveyed much of Nazism's dynamic appeal.

Hitler was never a socialist.

Hitler was unapproachable and impenetrable even for those in his close company.

Hitler was no inexorable product of a German 'special path', no logical culmination of long-term trends in specifically German culture and ideology. Nor was he a mere 'accident' in the course of German history.