~ Wer nicht liebt, trinkt und singt ~
This is one of the most common themes on German beer steins and is certainly a truism. The light relief stein is marked with the logo of Reinhold Merkelbach and for number 1182, ca. 1900.
Wer nicht liebt, trinkt und singt,
es nie zu wahren Freude bringt.
Who does not love, drink and sing
will never achieve true happiness.

This is a slight variation of the same theme and verse on the etched stein marked with the Merkelbach & Wick logo and mold number 3001, ca. 1900, shown below.
Translation: Les Hopper compilation
Photo credit: Unknown