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.

Since Hiroshima and the Holocaust, science no longer holds its pristine place as the highest moral authority. Instead, that role is taken by human rights. It follows that any assault on Jewish life - on Jews or Judaism or the Jewish state - must be cast in the language of human rights.

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.

Close to a billion people - one-eighth of the world's population - still live in hunger. Each year 2 million children die through malnutrition. This is happening at a time when doctors in Britain are warning of the spread of obesity. We are eating too much while others starve.

The meaning of the universe lies outside the universe.

In thinking about religion and society in the 21st century, we should broaden the conversation about faith from doctrinal debates to the larger question of how it might inspire us to strengthen the bonds of belonging that redeem us from our solitude, helping us to construct together a gracious and generous social order.

Freedom begins with what we teach our children. That is why Jews became a people whose passion is education, whose heroes are teachers and whose citadels are schools.