Lapham's Quarterly (which looks pretty neat, of brainy types) has a list of translated notes from the margins of Medieval manuscripts. Image from The Book of Kells. (Thanks, DF!)
Writing is excessive drudgery. It crooks your back, it dims your sight, it twists your stomach and your sides.
Thank God it will soon be dark.
Now I've written the whole thing...give me a drink.
New parchment, bad ink; I say nothing more.