Ernest Jones schreibt an Frieda Gross: "[...] Some of the things you said to me were so wonderful that they have made me feel a King among men. [...] Rex"

Robinson, Ken: A Portrait of the Psychoanalyst as a Bohemian, in: Bachhiesl, Christian et al. (Eds.): Psychoanalyse & Kriminologie. Hans & Otto Gross. Libido und Macht. 8. Internationaler Otto Gross Kongress, Graz, 14. bis 16. Oktober 2011, S. 448