"In the course of my life I have developed five little democratic questions. If one meets a powerful person... ask them five questions:
'What power have you got?
Where did you get it from?
In whose interests do you exercise it?
To whom are you accountable?
And how can we get rid of you?'

If you cannot get rid of the people who govern you, you do not live in a democratic system."

-- from Tony Benn's last speech in the UK House of Commons, 2001. Full text: https://publications.parliament.uk/pa/cm200001/cmhansrd/vo010322/debtext/10322-13.htm