First they came for the communists, and I did not speak out, because I was not a communist

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.

http://en.wikipedia.org/wiki/First_they_came...