[cseelus]

Glück ist Wirklichkeit minus Erwartungen.

(As far as I know think this saying originated in Hinduism in the first place and found its way into the german linguistic area somehow)

[manmal]

I know it as "Glück ist Erreichtes minus Erwartetes.", pretty much the same.

[ironchef]

I'm surprised it's not a massive singular compound word

[bobbyong]

Awesome. Thanks for sharing! There's a lot of wise words of wisdom from the eastern religions