Miti sulla grammatica

You’ve probably heard the old story about the pedant who dared to tinker with Winston Churchill’s writing because the great man had ended a sentence with a preposition. Churchill’s scribbled response: “This is the sort of English up with which I will not put.”
It’s a great story, but it’s a myth. And so is that so-called grammar rule about ending sentences with prepositions. ...
Where did these phony rules originate, and why do they persist?
For some of them, we can blame misguided Latinists who tried to impose the rules of their favorite language on English. smithsonianmag.