"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 trade unionists,
and I didn't speak up because I wasn't a trade unionist.
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 no one was left to speak up."

— Martin Niemöller, from the poem First they came ...