Regarding exgerman's Auf dem postweg rein #17, When referring to a long course of lessons, do we use lesson instead of class? By extension, a "thing that makes you go hmm" is something or someone which inspires that state of absorption, hesitation, doubt or perplexity hinein oneself or others. I https://youtu.be/T0zWXvhEQwo?si=wNc6ihu97ShtIl7u