His approach stands in contrast to essentialist approaches such as the perennial psychology of Robert K.C. Forman.
Hjalmar Schacht | Hjalmar Peterson | Hjalmar Petersen | Per Karl Hjalmar Dusén | Hjalmar Stolpe | Hjalmar Johansen | Hjalmar Stolpe's tombstone in Solna Church | Hjalmar Selander | Hjalmar Frisell | Hjalmar Christensen | Hjalmar August Schiøtz | Hjalmar Andersen | Gösta Hjalmar Liljequist | Bólu-Hjálmar | August Hjalmar Edgren |