Earlier quoted context omitted.
I am willing to give up my language in favour of a world language - in fact, I have already done that. I think in English. I write all my poetry, stories and dreams in English, I only communicate in that language unless it's with family or coworkers. I pretty much gave up on my native language. I feel like English is superior in many ways because it has words that my language does not, which forces me to describe awk…
German, however, has schadenfreude, gestalt, eigenvalue, angst, weltschmerz and poltergeist ;)
Every child knows poltergeist, from Harry Potter. Every teenager knows angst.
The others are less universal, but I'd expect a university graduate to know them.