Mahendra Singh's ongoing Snark brings my attention to this Snarkly Carollian (Caroligian?) stanza:
"I said it in Hebrew — I said it in Dutch —
I said it in German and Greek:
But I wholly forgot (and it vexes me much)
That English is what you speak!"
Singh glosses: "Left alone in his splendidly impenetrable semiolinguistic Fortress of Solitude, the Baker is now free to concentrate his intellectual powers upon himself. Toying with the building-blocks of language and meaning, he will arrive at some sort of Answer to Life, the Universe and Everything in It … eventually … "
The word it in Hebrew, Dutch, German and Greek respectively is: hu het es auto. If we shift to Latin, the language of learning most obviously missing from this list (the barrus in the conclavum), we get Hu. Het. es auto; which is to say Humanorum hetaeria es auto: 'you are yourself the brotherhood of all men.' Wise Bakerly words, clearly referential of the crew of which he is a part, as are we all.