ex tractatu primo in epistolam iohannis ad parthos
... quomodo ostenditur hominibus tertia luna? verbi gratia, quando volunt homines videre lunam novam, dicunt, ecce luna, ecce ubi est: et si sunt ibi qui non valeant intendere aciem, et dicant, ubi? intenditur illis digitus ut videant. aliquando dum erubescunt ne caeci putentur, dicunt se vidisse quod non viderunt.
(... as the third moon is pointed out to people? for example, when people want to see the new moon, they say, ‘look, the moon, look where it is!’, and if there are people there who cannot focus their gaze on it, and they say, ‘where?’, then a finger is pointed for them so that they can see. sometimes, if they are embarrassed they will be thought blind, they say that they have seen what they have not seen.)
quid tam manifestum quam mons? sed sunt et montes ignoti, quia in una parte terrarum positi sunt. quis vestrum novit olympum montem? quomodo ibi qui habitant, giddabam nostrum non norunt.
(what is so conspicious as a mountain? but there are also unknown mountains, because they are located in one part of the earth. which of you knows mount olympus? just as those who live there do not know our giddabam)