First they came for the communists, and I did not speak out- because I was not a communist;
Then they came for the socialists, and I did not speak out- because I was not a socialist;
Then they came for the trade unionists, and I did not speak out- because I was not a trade unionist;
Then they came for the Jews, and I did not speak out- because I was not a Jew;
Then they came for me- and there was no one left to speak out for me.
Martin Niemoeller, Protestant leader, Christian opponent of the Nazis
Here's a link to the exact quote by Niemoeller.
http://www.jewishvirtuallibrary.org/jsource/Holocaust/Niemoller_quote.html