A poem by Pastor Martin Niemöller (1892–1984). Source of the poem was obtained here:
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.