§ 28 has been usually emended by the editors on the evidence of the (obviously corrupt) reading
hunc ad perficiendum adoravi
transmitted by the
— “Belles Lettres”,
— “Teubner”). On the contrary, I suggest following the text of the codex Erfurtensis (...
ad perficiendum adhortatus sum
), only in the light of colometry and after extensively analyzing the evidence of some Ciceronian clausulae I propose to read