Haruspicum Responsis, Pro Sestio, and Pro Caelio. 10 In De Provinciis Consularibus and Pro Balbo, and later Pro Rabirio Postumo, Pro Gabinio, and Pro Vatinio (the last two do not survive).11 Cicero also writes in De Oratore 3.14 that he finds some pleasure and salutary comfort in commemorating the greatness of the orators who are represented in the dialogue. In the letter to Lucceius, he makes the same point that reading about past suffering can be pleasurable (see below).