The euro is a great achievement. It's a symbolic achievement. But, the European constitution was a missed opportunity.

I definitely don't agree with that sort of rhetoric from the United States - this idea that all the major conflicts of our age need to be solved militarily.

People always think that loyalty is laudable. People are always saying that we must remain faithful to tradition, to family, to our class, to our ideas. Of course not! That would be equivalent to zero brain activity. If you really want to think, to seek truth, to advance intellectually, you must turn your back on clichés, on preconceived ideas - even those belonging to your spiritual family. For an intellectual, his true duty is not to fidelity, but to infidelity.

The totalitarian state is not a force unleashed, the truth is in chains.

I am 60, and I am as much an internationalist as when I was younger, when I was a Marxist-Leninist. Internationalism is one of the rare pieces of that heritage to which I remain loyal. That is Barack Obama's strength. A politician has finally understood that politics is not only about the closing of a mine in Ohio-it is also about the will to reach out, to embrace the world of today's young Americans. That way, young Americans may eventually reconcile with politics.

Why should an intellectual have to renounce the pleasures of life? I am not a hermit. I am a man of flesh and blood. In fact, if you look at my name in French, that schizophrenia, that aspiration to several lives is contained in my name. Lévy is also les vies - "the lives".

The Left is my family. And it is threatened by terrible demons, like differentialism. "differentialist Left" are people who have learned nothing about tolerance. Or justice. People who, hiding behind a backward sense of tolerance and justice, explain to us that we must accept all the actions of all civilizations, including the stoning of adulterous wives or the mutilation of little girls.