Confidence in a faith is a subtle quality and lack of it shows in many ways, some contradictory. Dr Sacks has that confidence and the quiet charisma to communicate it.

Sacks argues that faiths must remain open to criticism, keep alive their separate communities and still contribute far more to national debates on moral issues. They must also learn to get along better. His thesis is that we still live under a Biblical canopy and that a cohesive morality needs the uniting bonds of faith.

The subject of this book - religions and ethics - is good ground for him to build on: The Jewish contribution to ethics is distinctly rational and has a long and illustrious tradition. Moral philosophy is after all a Jewish preoccupation.

In recent years, he writes, religion has taken us unawares. The rise of the Moral Majority in the USA, the Islamic Revolution, the growth of religious parties in Israel, the power of Catholicism in Poland and the African continent all run contrary to the basic thesis that modernity and secularization went hand in hand and could almost be regarded as synonyms. Instead, and against all prediction, religion has resurfaced in the public domain.

In this book, Sacks argues the case for a broadly based return to tradition within the context of religious pluralism and tolerance. Religious values remain a strong force within our culture to be renewed. For our society to be viable indeed they must be renewed.