Although Moritz suffered from depression and ultimately committed suicide, he often displays a sense of humor in his writings and writes often to his parents and siblings, so he is a bit of enigma.
We do not have all of his letters and postcards translated as let - but we do know by the dates that he did serve in World War I, and thus we do not know the ultimate mental (and physical) damage that war did to him.
It is interesting though, that he served in Grimma as noted in this postcard, which is quite geographically close to Leipzig where he lived after the war, and it seems for many years of his life.
Below is the postcard as originally written, followed by the English translation:
With thanks to Matthias Steinke for his excellent translations from German to English, the following is that translation:
Sender: soldier M. Braunhart
2nd Replacement Battalion (of the) 106th Infantry Regiment
1st reservists depot
6th corporal community - Grimma
15 September, 1915
My very beloved!
Got your card. Took note of its content. Have already written to Julius but (he is)
still in Hohensalza.
Please tell me whether they took Karl and Philip.
Sooner or later, no one who is only a little useful will be spared from this wonderful sport.
I feel good in the military - Overleaf are the new members of my club.
Looks like a bootblack society. ...us all ....proud .....write back soon.