Martin Niemöller.
"First 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 for me."
--Martin Niemöller after World War II. Other versions exist.
