Chatting with some IAs recently, we wondered into grammatical territory where to my relief everyone felt passionately that it’s alright to end sentences with a preposition. One or two people said that was a rule carried over from Latin that shouldn’t apply to English. Winston Churchill illustrated the preference of comfortable convention over artificial rule:

When an editor dared to change a sentence of Churchill’s that appeared to end inappropriately with a preposition, Churchill responded by writing to the editor, “This is the kind of impertinence up with which I shall not put.”