~ Schau die Welt mit heitern Blick ~
The verse is self explanatory on this hand-enameled, blown-glass stein, ca. mid to late 1900's.
Schau die Welt mit heitern Blick, heiter lacht sie dir zurück.	See the world with a cheerful view (and) it will laugh cheerfully back at you.

Translation: Roy De Selms Photo credit: Andre Ammelounx - The Stein Auction Co.