A fascinating article by Steve Hayward of Powerline on Winston Churchill and Islam, in the midst of which he brings up this quote:
We owe to the Jews in the Christian revelation a system of ethics which, even if it were entirely separated from the supernatural, would be incomparably the most precious possession of mankind, worth in fact the fruits of all other wisdom and learning put together. On that system and by that faith there has been built out of the wreck of the Roman Empire the whole of our existing civilization.
With his views today, he could not survive in public life. Read the article.