I was honoured recently to accept the position of president of Mizrachi U.K. I did so because I believe our eternal challenge as Jews is both straightforward and also awash with complexity: How to sanctify the innovations of the modern world in accordance with our eternal Jewish values?

Free speech may be a right, but only by using it as a force for good in the world do we make it a virtue.

As we wander, grieving, in yet another dark moment, amid our pain we must struggle to remember the redemptive power of love and hope.

Life has an absolute value and its preservation takes precedence over other commandments.

To say I was near our president, performing at the Nobel Peace Prize... I think that's an amazing thing.

Police departments across the nation must develop nonviolent 'rules of engagement,' so that they don't reflexively respond to suspected crimes with violence. This will require more in-depth training in the behavioral psychology of conflict resolution so police have tried-and-true techniques of preventing and de-escalating violence.

In the midst of the war against ISIS, we have also waged war on corruption in civil and military institutions.

Everyone thinks my story should be marked by heroism, but there was no risk to myself. You see, no-one in Prague at that time thought they were going to be at war with England.