When you've got Jews and Christians, Muslims, Sikhs and Hindus removing graffiti from buildings, or getting drug dealers off the street, that's side by side. When you do that, you take it from the very elevated level of interfaith dialogue to the street level of neighbors. You get them working side by side, and they become friends. Friendship sometimes counts for more than interfaith agreement or understanding. Friendship is deeply human.

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.

Food prices are often kept artificially high. The result is that the Millennium Development Goals set out by the United Nations at the start of the new millennium are not being reached. Fine words have not yet been turned into deeds.

Technology gives us power, but it does not and cannot tell us how to use that power. Thanks to technology, we can instantly communicate across the world, but it still doesn't help us know what to say.

Britain, relative to the U.S., is a highly secular society. Philanthropy alone cannot fill the gap left by government cutbacks. And the sources of altruism go deep into our evolutionary past.

In the post-enlightenment Europe of the 19th century the highest authority was no longer the Church. Instead it was science. Thus was born racial anti-Semitism, based on two disciplines regarded as science in their day - the 'scientific study of race' and the Social Darwinism of Herbert Spencer and Ernst Haeckel.

With wealth comes responsibility.