Each additional day together is a gift. The end of the day means the end of hostilities, the recognition that the underlying shared values and commitment to the relationship trump the need for one last dig or self-righteous justification.

There is general agreement among researchers that nearly all stock pickers, whether they know it or not-and few of them do-are playing a game of chance.

An executive might have a very strong intuition that a given product has promise, without considering the probability that a rival is already ahead in developing the same product.

I enjoy being active, but I look forward to the day when I can retire to the Internet.

If individuals are rational, there is no need to protect them against their own choices.

If owning stocks is a long-term project for you, following their changes constantly is a very, very bad idea. It's the worst possible thing you can do, because people are so sensitive to short-term losses. If you count your money every day, you'll be miserable.

The conclusion is straightforward : self-control requires attention and effort.