In our firm's earliest days, our understanding of the power of great software engineering and quantitative analytics helped Citadel stand out.

It is incredible to come to work every day surrounded by individuals whose insights and efforts place us at the forefront of finance.

If you think about the amount of critical thinking that has come into the field of economics, two universities have dominated the landscape in my life: Chicago and Harvard.

One of the great advantages that I had in my career is I started trading 24 hours a day in my early 20s, and I had to learn to delegate to people.

I was looking for something like baseball, where there's a lot of data and the competition was pretty low. That's when I discovered politics.

We can only restore faith in government if the state itself becomes an efficient, effective and transparent ally of the people. Bureaucratic inefficiencies, abuses of power and the misappropriation of public funds must end.

Well, Mr Obama inherited probably the biggest inventory of problems, certainly foreign policy problems, than any American president ever has. I think the entire inventory of problems that he inherited is probably as big overall as any president, certainly since Franklin Roosevelt and maybe, in some cases, worse.

Safety and health of water is clearly a compelling government interest.