please tell me that i did not find a contradiction

thanks. id like to know where exactly i could find this explanation by Tolkien that you speak of. also, not long after i made that post i realized my mistake on the first question, which you also speak of; that Sauron could no longer take a form THAT WAS FAIR. i dont know where i got the idea that he couldnt take a PHYSICAL form. also, one of you said that Sauron decieved everyone but the elves, i think by that you must mean after the second age ended. cause during that age he did decieve the elves in Eregion, thus resulting in the Rings of Power.