Good and Bad Violence
It is essential to define violence in such a way that it cannot be qualified as ‘good’. The moment we claim to be able to distinguish ‘good’ violence from ‘bad’, we lose the proper use of the word, and get into a muddle. Above all, as soon as we claim to be developing criteria by which to define a supposedly ‘good’ violence, each of us will find it easy to make use of these in order to justify our own acts of violence.
Jean-Marrie Muller (2002) Non-Violence in Education (UNESCO Portal)