Just look at any form where it asks for net or gross, and every time it explains the diff.
******************************** John Smith: So what am I then? Nothing. I`m just a story.
Doctor: You`re an echo. That`s all. A TimeLord is so much more. A sum of knowledge; a code. A shared history. A shared suffering. Only it`s gone now, all of it. Gone forever.
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dgms! 
