"I do not mean to say... that these love discussions... were without their influence upon the conduct and ideals of courtly life in the Middle Ages. ...the question of the existence of Courts of Love comes down to a question of jest or earnest, and the line between these is no easy one to draw. In our modern life we see men take to sport with all the seriousness of which they are capable, while others, quite literally, "play the game" of politics. An international yacht race moves men as deeply as a national election, and affects as permanently, ideals of conduct and the sense of honor. There is no reason to believe that business and play were any more clearly divided in the Middle Ages; and we may grant the love discussions of Eleanor of Aquitaine and her daughter an immense influence upon knightly conduct without in any way invalidating the contention that these ladies and their courtiers were only playing a game."
January 1, 1970
https://en.wikiquote.org/wiki/Middle_Ages