Muss es sein? Es muss sein!

Reasons Why German is a Cool Language
Zugzwang: compulsion to move
Weltschmerz: world-pain or world-weariness
Schadenfreude: pleasure taken from someone else's misfortune
Angst: fear or anxiety, (in Danish, dread)
Wanderlust: the yearning to travel
Sturm und Drang: storm and stress
Urtext: original text

Other fun words:
ennui
anomie
saudade
melancholia

Not to mention Pataphysics and pataphors (which are not to be confused with petit-fours, though they are somehow more delicious).