It would be useless to praise Margaret Thatcher's achievements as the U.K.'s Prime Minister as the internet is flooded with tributes. I seek to avoid needless repetition. So I'll bring to your attention one tribute which highlights an aspect of her life which is little known. The one thing which Margaret Thatcher did that made her most proud was saving a young Jewish girl from Hitler's Nazis. You can read about this here. HT: Sarah Pulliam Bailey.
For Margaret Thatcher's Methodist roots, see here, from the Institute on Religion and Democracy blog.