I'll come back for you.

“It’s Almost Time.”

I find it difficult, I find it difficult, this sort of thing.  I know.

bow ties are cool.

«When you love the Doctor, it’s like loving the stars themselves. You don’t expect a sunset to admire you back.»

Let me be brave.

John and Irene’s conversation in A Scandal in Belgravia recut for extreme Johnlock continuity 

What is it, to be a hero? Look in the mirror and you’ll know. Look into your own eyes and tell me you are not heroic, that you have not endured, or suffered… or lost the things you care about most. And yet, here you are… a survivor of Hell’s Kitchen… the hottest place anyone’s ever known. A place where cowards don’t last long. So… you must be a hero. We all are.

 - The spaceship did a sling shot round the Earth before it landed.  - What does that mean?  - It means it came from Earth in the first place. It went up and came back down. Whoever those aliens are, they haven’t just arrived, they’ve been here for a while. The question is, what have they been doing?