First they came for the Communists,
and I didn’t speak up, because I wasn’t a Communist.

Then they came for the Jews,
and I didn’t speak up, because I wasn’t a Jew.

Then they came for the Catholics,
and I didn’t speak up, because I was a Protestant.

Then they came for me,
and by that time there was no one
left to speak up for me.

by Rev. Martin Niemoller, 1945

Twitches writes of this poem here .