When they locked up the ...

When they locked up the social democrats,
I remained silent;
I was not a social democrat.
When they locked up the social democrats, I remained silent; I was not a social democrat.
 Martin Niemoller

More phrases

All the great things are simple, and many can be expressed in a single word: freedom, justice, honor, duty, mercy, hope.
I know but one freedom and that is the freedom of the mind.
 Antoine de Saint-Exupéry
Freedom is not worth having if it does not connote freedom to err.
The amount of happiness that you have depends on the amount of freedom you have in your heart.
 Thích Nhất Hạnh
Without freedom of thought, there can be no such thing as wisdom - and no such thing as public liberty without freedom of speech.

Quotes from the same author

Ask the first man you meet what he means by defending freedom, and he'll tell you privately he means defending the standard of living.
 Martin Niemoller
What should we do? We have no wish to interrupt the destroyer's work of saving lives... But war is war and the people being picked up out of the water are soldiers bound for the front; soldiers who are to shoot at our German brothers... The question whether we are to perish in despair or defiance, or survive all trails with a live conscience, depends wholly and solely on whether we believe in the forgiveness of sins. This 25th January was the turning point in my life, because it opened my eyes to the utter impossibility of a moral universe.
 Martin Niemoller
There was no one left to speak for me.
 Martin Niemoller
We had been frightened of atomic weapons since 1945. In those days I became convinced - and remain convinced now - that, after Hitler, Truman was the greatest murderer in the world.
 Martin Niemoller