While their fiscal views aren't mine, the moderates are the last reasonable voice in the current Republican Party.

Power must be used, but it must be tempered by soul-searching and the recognition of our human capacity for error. That is the maxim that should inform our approach to every challenge, from reforming state government to engaging in foreign affairs.

We are all used to paying a sales tax when we buy things - almost 9 percent here in New York City. The application of this concept to the financial sector could solve our need for revenue, bring some sanity back into the financial sector, and give us a way to raise the revenue we need to run the government in a fiscally responsible way.

I don't have any particular expertise-I've never been a banker or an investment banker. But I did see an evolution in the system that I thought was problematic.

Imagine if investors in Wal-Mart really cared about bribery at that company's overseas operations or safety standards at its overseas manufacturing plants. If investors pulled their capital, corporate leaders would have to respond.

I would very honestly just tell you that what I tried to do was simply respond to inquiries from people as they came in. Where I've thought I could say something useful, I've tried to add a voice that was, frankly, a dissident voice earlier on, but one that I think has become a more mainstream voice-and not because I've shifted. I think that the critique I had of what was going on in our financial system from six, eight years ago-after seeing some of what we've suffered through and even since the cataclysm itself-in terms of the structural changes.

After 25-plus years as a lawyer, prosecutor, and defense attorney, I have developed a deep appreciation for both the wisdom of the law and the role that jurists play in framing the rights and responsibilities that define our society.