There's something really cool about scaring children. Traumatize a generation, that's what it's all about.

There's one thing you don't put in a trap, if you're smart, if you value your continued existance, if you have any plans about seeing tomorrow, there is one thing you never ever put in a trap. And what would that be sir? Me

The Doctor...is embarrassingly human for an alien.

Don't play games with me! You just killed someone I like, that is not a safe place to stand! I'm the Doctor, and you're in the biggest library in the Universe. Look me up.

The Doctor: [aiming gun at the ceiling] Didn't anyone ever tell you? There's one thing you never put in a trap if you're smart. If you value your continued existence, if you have any plans about seeing tomorrow, there's one thing you never, ever put in a trap. Angel Bob: And what would that be, sir? The Doctor: Me. [fires]

The Doctor: 'You know when grown-ups tell you everything's going to be fine, but you really think they're lying to make you feel better?' Amelia: 'Yeah...' The Doctor: 'Everything's going to be fine.

Come on, Rory! It isn't rocket science, it's just quantum physics! -The Doctor (Matt Smith)