There is a famous quotation by Martin Niemöller often used to promote the Holocaust:
While the Holocaust is a massive deception, censorship is a simple reality. Freedom of speech is widely recognized as an unalienable human right. Why is it not a fundamental principle here in this discussion forum?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.
-- source
First they censored the antagonists, and I did not speak out—
Because I was not an antagonist.
Then they censored the dissenters, and I did not speak out—
Because I was not a dissenter.
Then they censored the free speech advocates, and I did not speak out—
Because I was not a free speech advocate.
Then they censored me — and there was no one left to speak freely.