The high priests of speaking out are John Stuart Mill, an English philosopher, and Martin Niemöller, a Lutheran pastor. “Bad men need nothing more to compass their ends,” Mill warned, “than that good men should look on and do nothing.” Niemöller famously ventriloquised the many Germans who kept silent when the Nazis “came for the socialists”, the trade unionists and the Jews: “Then they came for me—and there was no one left to speak for me.”