Very often programs which start from the idea of justice and which ought to assist its fulfillment among individuals, groups and human societies, in practice suffer from distortions. Although they continue to appeal to the idea of justice, nevertheless experience shows that other negative forces have gained the upper hand over justice, such as spite, hatred and even cruelty. In such cases, the desire to annihilate the enemy, limit his freedom, or even force him into total dependence, becomes the fundamental motive for action; and this contrasts with the essence of justice, which by its nature tends to establish equality and harmony between the parties in conflict. This kind of abuse of the idea of justice and the practical distortion of it show how far human action can deviate from justice itself, even when it is being undertaken in the name of justice. Not in vain did Christ challenge His listeners, faithful to the doctrine of the Old Testament, for their attitude which was manifested in the words: An eye for an eye and a tooth for a tooth." This was the form of distortion of justice at that time; and today's forms continue to be modeled on it. It is obvious, in fact, that in the name of an alleged justice (for example, historical justice or class justice) the neighbor is sometimes destroyed, killed, deprived of liberty or stripped of fundamental human rights. The experience of the past and of our own time demonstrates that justice alone is not enough, that it can even lead to the negation and destruction of itself, if that deeper power, which is love, is not allowed to shape human life in its various dimensions (Papal Encyclical, Dives et misericordia, 30 November 1980).