“And it was not merely tens of thousands, or hundreds of thousands, but hundreds of millions of people who were the obedient witnesses of this slaughter of the innocent. Nor were they merely obedient witnesses: when ordered to, they gave their support to this slaughter, voting in favour of it amid a hubbub of voices. There was something unexpected in their degree of obedience... The extreme violence of the totalitarian social systems proved able to paralyse the human spirit throughout whole continents.”