Life and consciousness are the two great mysteries. Actually, their substrates are the inanimate. And how do you get from neurons shooting around in the brain to the thought that pops up in your head and mine? There's something deeply mysterious about that. And if you're not struck by the mystery, I think you haven't thought about it.

Every new president flatters himself that he, kinder and gentler, is beginning the world anew. Yet, when Barack Obama in his inaugural address reached out to Muslims by saying, 'To the Muslim world, we seek a new way forward, based on mutual interest and mutual respect,' his formulation was needlessly defensive and apologetic.

Ted Cruz is a patriot. He believes in what he does. He's done marvels in mobilizing conservatives, mobilizing Americans concerned about the direction of the ever-expanding entitlement state under Obama, and particularly the threat it is to freedom. I disagree with his tactics, but I agree entirely with his objectives.

Americans are not intrinsically imperial, but we ended up dominant by default: Europe disappeared after the Second World War, the Soviet Union disappeared in 1991, so here we are.

Hawks favor war on the grounds that Saddam Hussein is reckless, tyrannical and instinctively aggressive, and that if he comes into possession of nuclear weapons in addition to the weapons of mass destruction he already has, he is likely to use them or share them with terrorists. The threat of mass death on a scale never before seen residing in the hands of an unstable madman is intolerable – and must be preempted.

If you believe that health care is a public good to be guaranteed by the state, then a single-payer system is the next best alternative. Unfortunately, it is fiscally unsustainable without rationing.

Identity politics is the mother's milk of the Democratic Left.