Sheldon: Doctor Greene, question?
Dr. Greene: Yes?
Sheldon: You've dedicated your life's work to educate the general populous about complex scientific ideas.
Dr. Greene: Yes, in part.
Sheldon: Have you ever considered trying to do something useful? Perhaps reading to the elderly?
Dr. Greene: Excuse me?
Sheldon: Yeah, but not your books. Something they might enjoy. I kid of course, big fan.