Always Take A Banana To A Party.

The Doctor: I've Seen Bigger. Clara: Really? The Doctor: Are You Joking? It's Massive!

I Can't See What's Wrong About Assuming Intelligence In Your Audience And What's Bad News About Being Rewarded For Assuming That.

You'll Go Out Of Business If You Think People Are Stupid.

Come On, Rory! It Isn't Rocket Science, It's Just Quantum Physics! -the Doctor (matt Smith)

The Universe Is Big, Its Vast And Complicated, And Ridiculous. And Sometimes, Very Rarely, Impossible Things Just Happen And We Call Them Miracles. And That's The Theory. Nine Hundred Years, Never Seen One Yet, But This Would Do Me.