But . . .

". . . copying with variations is an important form of creativity, and this should make us prudent and measured in our condemnation of plagiarism.”

"The most reliable, if not necessarily the most exciting, textbook is one that confines itself to ideas already well accepted, not at all novel.”

“We should be aware that the high value placed on originality is a specific cultural, and even field-specific, phenomenon, rather than an aspect of the universal moral law.”

“It would be better if the term “plagiarism” were confined to literal copying, and moreover literal copying that is not merely unacknowledged but deceptive.”

Richard Posner. (Senior Lecturer in Law. University of Chicago Law
School) “The Truth About Plagiarism” Newsday[New York] 18 May, 2003. http://www.law/uchicago.edu/news/posner-r-plagiarism.html