Everyone knows Benjamin Franklin invented the United States, and electricity (or, self-electrocution or something). But did you know he was also an expert about having affairs? Thus he gives his list of reasons why it's better to have an affair with an older woman.
This list has to be read to be believed, but frankly the part that amused me the most was the bit about "all cats are grey in the dark". You can fill in the rest.
I can only imagine the field day the media would have if a modern politician wrote such a letter.