"Free speech is important whether you like what's being said or not. The reason why it's so important is that the entire spectrum of ideas needs to be heard so that the best ones are embraced and rise to the top. If you're a liberal and don't like conservative speech and you try to stifle that conservative speech, you need to be prepared for your own progressive speech to be stifled when the power shifts out of your favor."

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Any profession should have norms around the issue you raise. And, in the words of the great economic thinker Albert Hirschman, we all owe a measure of loyalty to professional norms. But when the norms seem unhelpful or unproductive, one needs to speak up - to activate voice. And in the extreme, if the profession and one's colleagues seem estranged from a thoughtfully selected course of action, you need to consider the possibility of exit. Of course, if you knowingly violate norms or laws, you need to be prepared to face the consequences - or to lead a revolution!

— Howard Gardner