Herbert A. Simon

My research career has been devoted to understanding human decision-making and problem-solving processes. The pursuit of this goal has led me into the fields of political science, economics, cognitive psychology, computer science and philosophy of science, among others.

The smaller the planets are, they are, other things being equal, of so much the greater density; for so the powers of gravity on their several surfaces come nearer to equality. They are likewise, other things being equal, of the greater density, as they are nearer to the sun.