Rubuta ci gaba don wannan sakin layi - Saboda haka Halbertsma ya yi tsammanin za a nada shi farfesa na harshen Yaren mutanen Holland da adabi, kuma sau da yawa irin wannan alƙawari ya kasance kusan a cikin sa, amma duk lokacin da ya ɓace. Fensir dinsa mai kaifi mai yiwuwa ya taka rawa a wannan, amma akwai wasu dalilai, ma. A shekara ta 1830, ya rasa daga yawan adadin masu neman takardun da ke kwashewa a Netherlands daga jami'o'in Belgium, wanda a wannan lokacin ya rabu da shi daga Ƙasar Ingila na Netherlands
, kuma bayan 1840 an kira wani nau'in masanin kimiyya daban, tare da ƙarin ƙwarewar ilimi fiye da Halbertsma ya umarta. Cewa a cikin 1837 an ba shi lambar yabo ta girmamawa a cikin adabi daga Jami'ar Leiden, ba ta da ta'aziyya a gare shi. A wani bangare saboda wadannan abubuwan takaici, Halbertsma ya daidaita a gefen ƙonewa na dogon lokaci, kuma musamman a 1839, lokacin da aka sake wuce shi, ya shiga cikin mawuyacin hali. A cikin shekarun 1860 ne kawai, lokacin da yake cikin shekarunsa saba'in, da alama ya sami kwanciyar hankali.