A commemorative plaque in memory of Father Jan Kaczkowski made in the technique of digital printing on glass. The quote says: "It is common to say that Poles are famous for their hospitality. Exactly! The word hospitality (polish: gościnność) comes from two words: guest and otherness (polish gość - guest, inność - otherness). You cannot be hospitable to people who are identical with us. You can only host others. . If we do not start being open to others, we can throw this empty plate prepared for the Christmas Eve table out the window. " . The memorial plaque hangs in Sopot, on the square which was named after Jan Kaczkowski.