~ Hast du Kummer, Liebesschmerz ~
Good advice on this blue/gray salt-glazed stoneware stein ca. 1900.
Hast du Kummer, Liebesschmerz,
drück den Krug dir an's Herz.
When you have sorrows or love pains,
press your stein to your heart.

This verse can also be found on the tapestry-style stein marked with the Villeroy & Boch - Mettlach logo and form number 1648 shown below.
Translation: Les Hopper compilation
Photo credit: Unknown, and Andre Ammelounx - The Stein Auction Co.