Big Bang Theory Quote
Sheldon: (Talking about Penny's proposed home-based business) If you took advantage of modern marketing techniques, and you optimized your manufacturing process, you might be able to make this a viable business.
Penny: And you know about that stuff?
Sheldon: (patronizing) Penny - I'm a physicist. I have a working knowledge of the entire universe and everything it contains.
Penny: Who's Radiohead?
Sheldon: (with facial tic) I have a working knowledge of the _important_ things in the universe.
Quote from S02E18 - The Work Song Nanocluster