His right to teach was terminated and he refused the offer of a research only position, moving to Berlin in 1946 when he took up a research post at Berlin Academy . H W Leopoldt writes in:
Kanyang karapatan na magturo ay itinigil at siya tumanggi sa alok ng isang pananaliksik lamang ng posisyon, ang paglipat sa Berlin sa 1946 kung kailan siya took up ng isang research-post sa Berlin Academy. Hw Leopoldt magsusulat sa: