But don't you see that the essential error is the same?

That is the essential error of the specialist philosopher, the specialist teacher, the specialist publicist.

Other arguments suggest that Willis' work suffers from two essential errors: essentialism and dualism (philosophy of mind)

But NBC's Yankee team, Gary Thorne and Tommy Hutton, committed an essential error.

And not simply the general usage: "Science is measurement," Science is "organised common sense," proud, in fact, of its essential error, scornful of any metaphysical analysis of its terms.

"An essential error of many embattled governments fighting an insurgency," the team said in the draft of a new analysis, "is the failure to realize that the central goal of the insurgent is to destroy the legitimacy of the government in power."

But Ronald Steel's review of my book "The Lesser Evil: Political Ethics in an Age of Terror" (July 25) is such a travesty that I feel I owe it to your readers to point out one essential error.