The other ones have things written on them such as IN MESUR YS NOLOS and TROULING STOON GADYR NOMOS, which in modern English would be "in measure is no loss" ("measure" meaning "moderation") and "rolling stones gather no moss".
The beam I took a photo of has a similar saying on it, although it's not one in common use today (not because it's outrageous or anything, it just doesn't appear to have caught on). See if you can guess what it says. Hint: the first two words are "in over".
Answer tomorrow...