More on illness and its impact (like forgetting all of one's learning), plus stories about the sages. Including R. Yosef. Plus, insight into the writing or compiling of the Mishnah. Also, the challenges of forgetting, as per R. Hiya - and the remembering by a lowly laundryman. Also, two mishnayot on the extent to which one can be near another person and not violate the swearing off of benefit.