Page:A translation of the Latin works of Dante Alighieri.djvu/48

IX unchangeable identity of speech in different times and places. This having been settled by the common consent of many peoples [l00], seems exposed to the arbitrary will of none in particular, and consequently cannot be variable. They therefore invented grammar in order that we might not, on account of the variation of speech fluctuating at the will of individuals, either fail altogether in attaining, or at least attain but a partial knowledge of the opinions and exploits of the ancients, or of those whom difference of place causes to differ from us.

17. Eloquent writers (doctores), i.e. poets whose writings have given them the authority of teachers. So again below, line 21 of this chapter, and 10: 25, 12: 10, 15: 45, and II. 5: 24, where the word is translated 'teachers.'