Interesting -- only because I was just saying on the Classics list that no one reads sig files -- excerpt from a piece in the Chicago Tribune:

I've been feeling the pressure to get one of my own lately as more of the e-mail I receive comes carrying these nuggets.

A colleague, for example, has taken to signing his e-mails, personal and professional, like this:

"Chance is always powerful. Let your hook always be cast. In the pool where you least expect it, there will be fish." -- Ovid (43 BC-17 AD)

It's a perfect signature quote -- edifying, thought-provoking and unknown except to ancient-Greek scholars and anyone who owns the fishing poster on which my colleague discovered it.

"It means don't be afraid to try," he says, "and you might be surprised by how many people respond to that in different ways. They see it and say, 'I love your quote from Ovid.' It's an icebreaker."

... I can't recall anything like that from Ovid; it sounds Ars Amatoriaish (lots of 'fishing' imagery there), but I can't seem to locate it ...