Nothing can ever be a rule in drama, because then you're saying certain things won't ever happen, and that would be very boring.

If it’s time to go, remember what you’re leaving. Remember the best.

People don't really have a relationship with great writing or great production or great art direction or great direction. They just sort of admire it.

I hope I won't become hated by geeks everywhere, but I don't really know comic books all that well.

Kathy Nightingale: What's good about sad? Sally Sparrow: It's happy for deep people.

So is this how it works Doctor? You never interfere with the affairs of other peoples or planets, unless there are children crying?

You have to take your own bold approach, and if you do you will be rewarded with success. Or calamitous failure. That can happen too.