The scanned source document displays the letter "f" instead of "s" in many places, despite there being an actual "s" here and there. Curious.

https://ia801609.us.archive.org/0/items/galateooratreat01cas...

It's the English long s. I'm not aware of any OCR that recognizes it. Distinct from the letter F by it's lack of a horizontal bar.

I love this site, they so much great stuff all the time! Thanks for sharing!

"The logic makes sense, however, for one should never portray themselves as bored, idle, or distracted in the company of others: the affront of an acquaintance checking text messages over drinks predates smartphones by several centuries, it seems."