(Barry) Bonds' records must remain part of baseball's history. His hits happened. Erase them and there will be discrepancies in baseball's bookkeeping about the records of the pitchers who gave them up. George Orwell said that in totalitarian societies, yesterday's weather could be changed by decree. Baseball, indeed America, is not like that. Besides, the people who care about the record book - serious fans - will know how to read it. That may be Bonds' biggest worry.

Obama, startled that components of government behave as interest groups, seems utterly unfamiliar with public choice theory. It demystifies and de-romanticizes politics by applying economic analysis - how incentives influence behavior - to government.

Being elected to Congress is regarded as being sent on a looting raid for one's friends.

The progressive agenda is actually legitimated by the incomprehension and anger it elicits: If the people do not resent and resist what is being done on their behalf, what is being done is not properly ambitious. If it is comprehensible to its intended beneficiaries, it is the work of insufficiently advanced thinkers.

(Pete) Rose's coming clean is the most soiled conversion of convenience since ... well, Aug. 17, 1998, when DNA evidence caused Bill Clinton to undergo a memory clarification. On the diamond, no one ever wrung more success from less natural talent than Rose did. But his second autobiography - which refutes the first - makes worse the mess he has made.

Sports is a moral undertaking because it requires of participants, and it schools spectators in the appreciation of, noble things - courage, grace under pressure, sportsmanship.

It is no exaggeration to conclude that the Internet has achieved, and continues to achieve, the most participatory marketplace of mass speech that this country - and indeed the world - has yet seen.