I recently came across a passage that seems especially relevant in this, the combative age of President Donald J. Trump.
The missive, “110 Rules of Civility & Decent Behaviour in Company and Conversation,” was provided by the Facebook account of George Washington’s Mount Vernon estate.
“George Washington wrote out a copy of the 110 Rules of Civility in his school book when he was about 16 years old,” the museum's account says. “These maxims originated in the late 16th century in France and were popularly circulated during Washington’s time. This exercise, now regarded as a formative influence in the development of his character, included guidelines for behavior in pleasant company, appropriate actions in formal situations and general courtesies.”
The original rules are attributed to the French Jesuits in 1595.