So?! And Churchhill ended one with a preposition.
A) It wasn't a preposition; it was the particle of a phrasal verb.
2) He was being facetious
Ů) It probably wasn't even Churchill.
Are you saying it was a biographer or urban myth that puts the clause "up with which I will not put" in Churchill's mouth? (which is presumably the one in question).
I got it in my memory that I read somewhere that it wasn't Churchill that said it, that it was just another misattribution, not unlike all those Mark Twain, Oscar Wilde so-called quotes, but I can't find anything ot back me up.
And wasn't the whole point that he was deliberately NOT ending the sentence with the preposition "with" but with the verb 'put' in order to show that not only is it quite appropriate to end a sentence with a proposition, it is sometimes in fact silly not to end the sentence with it?
What I said about being facetious.
As far as their not being prepositions, I also seem to remember reading somewhere that there is a substantial body of linguists who believe that the modern prepositions derived from what amounted to particles of phrasal verbs. Of course, if you have enough case markers for your nouns you don't really need prepositions.