Purity is a good mask for corruption because it discourages inquiry.

Information is a beacon, a cudgel, an olive branch, a deterrent--all depending on who wields it and how.

Levitt admits to having the reading interests of a tweener girl, the Twilight series and Harry Potter in particular.

Many of life's decisions are hard. What kind of career should you pursue? Does your ailing mother need to be put in a nursing home? You and your spouse already have two kids; should you have a third?such decisions are hard for a number of reasons. For one the stakes are high. There's also a great deal of uncertainty involved. Above all, decisions like these are rare, which means you don't get much practice making them. You've probably gotten good at buying groceries, since you do it so often, but buying your first house is another thing entirely.

Don't trust, just verify.

People who buy annuities, it turns out, live longer than people who don't, and not because the people who buy annuities are healthier to start with. The evidence suggests that an annuity's steady payout provides a little extra incentive to keep chugging along.

After all, your chances of winning a lottery and of affecting an election are pretty similar. From a financial perspective, playing the lottery is a bad investment. But it's fun and relatively cheap: for the price of a ticket, you buy the right to fantasize how you'd spend the winnings - much as you get to fantasize that your vote will have some impact on policy.