...academic credentials are neither a necessary nor a sufficient condition for having your ideas taken seriously. If a famous professor repeatedly says stupid things, then tries to claim he never said them, there's no rule against calling him a mendacious idiot - and no special qualifications required to make that pronouncement other than doing your own homework.Conversely, if someone without formal credentials consistently makes trenchant, insightful observations, he or she has earned the right to be taken seriously, regardless of background.

Are you, or is someone you know, a gadget freak? If so, you doubtless know that Wednesday was iPhone 5 day, the day Apple unveiled its latest way for people to avoid actually speaking to or even looking at whoever they're with.

You really have to go searching desperately to find any contemporary examples of good, old-fashioned runaway inflation.

When stock prices are rising, it's called ''momentum investing''; when they are falling, it's called ''panic.''

Not all private equity people are evil. Only some.

Some years down the pike, we're going to get the real solution, which is going to be a combination of death panels and sales taxes. It's going to be that we're actually going to take Medicare under control, and we're going to have to get some additional revenue, probably from a VAT. But it's not going to happen now.

What Republicans have actually put on the table is almost nothing. All of the rest is just big talk. So how is the president supposed to negotiate with people who say, 'Here's my demands. By the way, I can't give you any specifics. Just make me happy'?