individuals are honest only to the extent that suits them (including their desire to please others)

We should teach the students, as well as executives, how to conduct experiments, how to examine data, and how to use these tools to make better decisions.

People are irrational - and predictably so.

If you think of people as making decisions actively, every time we think about the cup of coffee, we say, "How much will I enjoy the cup of coffee, what else could I not do in the future because I buy this cup of coffee?

It is very difficult to make really big, important, life-changing decisions because we are all susceptible to a formidable array of decision biases. There are more of them than we realize, and they come to visit us more often than we like to admit.

Do you know how much money you would save if you changed your light bulb to compact florescent light bubs? How much would you save if you decreased your temperature of your house in the winter by one degree, or increase it by one degree? We just don't know these numbers, but I think displays could make it a memorable change in terms of attention, and also help us translate it in terms of concrete ways on what you can get.

Money is all about opportunity cost. Every time you spend on something, that's something you can't spend on something else.