Families, groups, societies, States and the international community itself need forgiveness in order to renew ties that have been sundered, go beyond sterile situations of mutual condemnation and overcome the temptation to discriminate against others without appeal. The ability to forgive lies at the very basis of the idea of a future society marked by justice and solidarity. By contrast, the failure to forgive, especially when it serves to prolong conflict, is extremely costly in terms of human development. Resources are used for weapons rather than for development, peace and justice. What sufferings are inflicted on humanity because of the failure to reconcile! What delays in progress because of the failure to forgive! Peace is essential for development, but true peace is made possible only through forgiveness. Forgiveness is not a proposal that can be immediately understood or easily accepted; in many ways it is a paradoxical message. Forgiveness in fact always involves an apparent short-term loss for a real long-term gain. Violence is the exact opposite; opting as it does for an apparent short‑term gain, it involves a real and permanent loss. Forgiveness may seem like weakness, but it demands great spiritual strength and moral courage, both in granting it and in accepting it. It may seem in some way to diminish us, but in fact it leads us to a fuller and richer humanity, more radiant with the splendor of the Creator.