I have disappointed and failed to live up to the standard I expected of myself.

Imagine if the pension funds and endowments that own much of the equity in our financial services companies demanded that those companies revisit the way mortgages were marketed to those without adequate skills to understand the products they were being sold. Management would have to change the way things were done.

The pace of global warming is accelerating and the scale of the impact is devastating. The time for action is limited - we are approaching a tipping point beyond which the opportunity to reverse the damage of CO2 emissions will disappear.

It sucks. I used to be governor of New York.

As someone with a deep faith in competition and the market, I also know that markets only work with tough enforcement of the rules that guarantee competition and fair play - and that the pressure to break those rules only gets stronger as the amount of money involved gets larger.

President Obama is doing the right thing by offering young immigrants, most often in this country through no action of their own, a chance to live and work openly, free from the fear of deportation.

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.