For all the meaningful content I pulled out of the text, Barnard could as well have kept it down to two or three lines. If I'd been asked to give a high-school-style precis of the letter, it would have come out something like, "Keep on doing whatever it is you've been doing with regard to the subject under discussion, and be aware that some other, unidentified people might take steps to stop you from doing so. Have a nice day."