True enough. In a matter of fact, these sentences are about the only ones which Edelstein did not plagiarize himself. He has now explained himself in a follow-up: "A Stunt Explained." Here is his opening paragraph:
The response to my essay on plagiarism last week ("Where Have I Read That Before?") was swift, so here goes: Yes, it is plagiarized. Ninety- nine percent of it. The only original lines, in fact, are the first and the last two. After reading the endless stories about the Kaavya Viswanathan plagiarism case, I thought, Wow, at this rate, someone’s going to write a piece about plagiarism that’s going to turn out to be plagiarized. Then I thought, Why don’t I write that? The idea was just to put it out there to see how long it took for people to notice—and whether anyone thought it was a genuine piece of plagiarism. Michael David Smith wrote to Jim Romenesko 25 minutes after the media blogger linked to the article.
I love stunts like this! Nevertheless, may I never give in to the temptation of plagiarism.