Sometimes the sight of someone in one faith wrestling with that faith can empower you to wrestle with another faith. For me, it was reading about how the Catholic Church wrestled with itself in the 1960s. Pope John XXIII set Nostra Aetate - the Declaration on the Relation of the Church with Non-Christian Religions - in motion. It changed the relationship between Jews and Catholics. Today, Jews and Catholics meet as friends. If you can do that, after the longest history of hatred the world has known, that empowers you as a Jew or a Muslim to wrestle with your faith.

It is through exchange that difference becomes a blessing, not a curse.

That this occurred at the launch of the report into the Labour Party's recent troubles with antisemitism shows how deep the sickness is in parts of left of British politics today.

Governments cannot make marriages or turn feckless individuals into responsible citizens. That needs another kind of change agent.

Stabilizing the euro is one thing, healing the culture that surrounds it is another. A world in which material values are everything and spiritual values nothing is neither a stable state nor a good society. The time has come for us to recover the Judeo-Christian ethic of human dignity in the image of God.

We are biological creatures. We are born, we live, we die. There is no transcendent purpose to existence. At best we are creatures of reason, and by using reason we can cure ourselves of emotional excess. Purged of both hope and fear, we find courage in the face of helplessness, insignificance and uncertainty.

Anti-Semitism is best understood as a virus. It has no logic. Jews were hated because they were rich and because they were poor; because they were capitalists and because they were communists; because they held tenaciously to an ancient faith and because they were rootless cosmopolitans, believing nothing. Hate needs no logic. It is a sickness of the soul.