Maschke found working with Klein in his home in the evenings very rewarding, but once again Bolza suffered self doubts, feeling that he was not good enough to get an academic post in Germany. Bolza wrote that he felt:
Nagtatrabaho sa Maschke natagpuan Klein sa kanyang tahanan sa gabi napaka-ligaya, ngunit sa sandaling muli Bolza suffered sarili doubts, pakiramdam na siya ay hindi mabuti sapat na upang makakuha ng isang academic-post sa Germany. Bolza wrote na siya nadama: