I think the attractiveness of Buddhism is that it doesn't involve a belief in God. That appeals to a lot of people - intellectuals and well-educated people in particular.

A central feature of the ceremonial associated with Mithras was the taurobolium, the ritual slaughter of a bull which commemorated and repeated Mithras' primeval act. The initiate was baptized in its blood, partaking of its life-giving properties. It may be noted that this part of the ceremonial closely resembled the ritual of the cult of Cybele, the Great Mother of Asia Minor, which had been brought to Rome three centuries before Christ.

The fact of the matter is that Buddhism has changed a lot. When St. Francis of Xavier arrived in Japan, he wrote back to the Vatican and made a joke. "It is unfortunate," he said, "that the Lutherans were here before me." By this he meant that Pure Land Buddhism was so much like Lutheranism.

I've often admired the way many Catholics who have left the priesthood, for example, have nevertheless remained sincere Catholics. They voted with their feet.

I don't think religions will merge into a great global faith. But I do believe we're moving toward a global ideology that has a place for religion and recognizes the contributions of the different traditions. Hopefully, it will have an overarching view as to how we can work together for the promotion of human values and spirituality.

Tolerance has been a very important feature of Christianity from its very roots, despite all the other things that have gone on since. And that, I think, must be the global perspective. Tolerance implies more than saying, "Well, let the Muslims go on with what they are doing." It also means trying to learn something from them and adding that to your own tradition. That is the attitude I think needs to inform the global citizen of the future.

Children become more liberal partly as a reaction to their parents and partly through education. Education tends to make people a bit softer.