"A table without a remembrance of God is indistinguishable from a feeding-trough."

Source

Τράπεζα μὴ ἔχουσα μνήμην Θεοῦ, φάτνης ἀλόγων οὐδὲν διενήνοχεν.

     Leontius of Byzantium, Rerum sacrarum 2, On dinner (Περὶ δείπνου), PG 86, col. 2077B.  I was put onto this by Hermann Josef Sieben, "ΜΝΗΜΗ ΘΕΟΥ," Dictionnaire de spiritualité 10 (1980), 1412 (1407-1414).