In the beginning was the word, and the word was plagiarized, and this regular old plagiarism was bad. But then Jonah Lehrer taught us about self-plagiarism, and that was bad, too, but somehow less so. And now Jane Goodall is teaching us about Wikipedia plagiarism, which seems bad as well, and you know what? It’s hard to grade these things anymore. What’s next? David Bowie cribbing lines from T.S. Eliot?