I read Ben Franklin’s auto-biography last year (see post here), and do recall his “13 virtues.” The Art of Manliness, which I only recently discovered, has been running a series on all of them. Hopefully I can find time to go back and read the others, but this one on tranquility is really spot-on:

Art of Manliness post on Tranquility

The last paragraph matches well with one of my favorite sayings: “You can’t change the people you deal with (or the things that have happened), only your reaction to them.”