"For we may distinguish two main types of government. The first type consists of governments of which we can get rid without bloodshed — for example, by way of general elections; that is to say, the social institutions provide means by which the rulers may be dismissed by the ruled, and the social traditions- ensure that these i nstitutions will not easily be destroyed by those who are in power. The second type consists of governments which the ruled cannot get rid of except by way of a successful revolution — that is to say, in most cases, not at all" ... "the criterion of a democracy is this: In a democracy, the rulers — that is to say, the government — can be dismissed by the ruled without bloodshed Thus if the men in power do not safeguard those institutions which secure to the minority the possibility of working for a peaceful change, then their rule is a tyranny. We need only distinguish between two forms of government, viz. such as possess institutions of this kind, and all others"
https://archive.org/stream/TheOpenSocietyAndItsEnemiesPopper...