Never Run When You're Scared. Rule 7.

Reinette: One May Tolerate A World Of Demons For The Sake Of An Angel.

The Doctor: Oh, Now What's This, Then? I Love This. A Big, Flashy-lighty Thing. That's What Brought Me Here. Big, Flashy-lighty Things Have Got Me Written All Over Them. Not Actually, But Give Me Time... And A Crayon.

As We All Know, It Is The Proper Duty Of Every British Subject To Come To The Aid Of The Tardis.

You Want Weapons? We're In A Library! Books! The Best Weapons In The World!

Never Run When You're Scared. Rule 7.