Educators often need to present copied source material to students so that they may learn, analyze, and ultimately build upon it. Anyone, including Dr. Martin Luther King, Jr. in his “I Have a Dream” speech, may need to copy material to further their own arguments, either because the original author so perfectly expressed the argument or because the user is appealing to the authority of the original author. Others may need to copy in order to create a new work making an argument while demonstrating their cultural competence. Others copy to learn technique; sometimes the best way to understand how a work is constructed is to recreate it. Overall, “pure” copying is often a central part of transformativeness, and the fair use doctrine should protect it.