SOCIAL REFORM AND VIOLENCE such totally dissimilar results as social justice and peace between nations. Violence cannot lead to real progress unless, by way of compensation and reparation, it is followed by non- violence, by acts of justice and good will. In such cases, however, it is the compensatory behaviour that achieves the progress, not the violence which that behaviour was intended to compensate. For example, in so far as the Roman conquest of Gaul and the British conquest of India resulted in progress (and it is hard to say whether they did, and quite impossible to guess whether an equal advance might not have been achieved without those conquests), that progress was entirely due to the com- pensatory behaviour of Roman and British administrators after the violence was over. Where compensatory good behaviour does not follow the original act of violence, as was the case in the countries conquered by the Turks, no real progress is achieved. (In cases where violence is pushed to its limits and the victims are totally exterminated, the slate is wiped clean and the perpetrators of violence are free to begin afresh on their own account. This was the way in which, rejecting Perm's humaher alternative, the English setders in North America solved the Red Indian problem. Abominable in itself, this policy is practicable only in underpopulated countries.) The longer violence has been used, the more difficult do the users find it to perform compensatory acts of non- violence. A tradition of violence is formed; men come to accept a scale of values according to which acts of violence are reckoned heroic and virtuous. When this happens, as it happened, for example, with the Vikings and the Tartars, as the dictators seem at present to be trying to make it happen with the Germans, Italians and Russians, there is small prospect that the effects of violence will be made good by subsequent acts of justice and kindness.