There are, we are told, only two things certain in life: death and taxes. In truth there are one or two other things we could add, and the old saying about death and taxes can easily be changed with many other words, but this is the most relevant one here, and the idea people are most likely to quote. It did not originate with Benjamin Franklin, but can be followed back to 1716 and the actor Christopher Bullock, and, as with many things from Franklin’s pen, has been used out of context for so many other matters, it has completely lost all that he had originally referenced it to: the…