Cicero, Letters 12.17 (to Cornificius, September 46)
“I’ll have you know that in your absence I have taken the opportunity and the freedom, as it is, to write rather boldly and some of them are the kinds of things you might even accept! Now I have most recently written about the best style of speaking, a topic on which I imagine your judgment is often far from mine, as it often goes when a learned man differs a bit in opinion from one who is not unlearned.
I really hope you take the book to heart if only to make me happy. I will ask your servants to please copy it and send it to you. I truly think that even if you are less approving of the material, you will still find whatever I write welcome in your current isolation.”
Me <s>cito, dum tu absis, quasi occasionem quandam et licentiam nactum scribere audacius, et cetera quidem fortasse quae etiam tu concederes, sed proxime scripsi de optimo genere dicendi; in quo saepe suspicatus sum te a iudicio nostro, sic scilicet ut doctum hominem ab non indocto, paulum dissidere. huic tu libro maxime velim ex animo, si minus, gratiae causa suffragere. dicam tuis ut eum, si velint, describant ad teque mittant. puto enim, etiam si rem minus probabis, tamen in ista solitudine quicquid a me profectum sit iucundum tibi fore.