Small though it is, the human brain can be quite effective when used properly.
It was lovely to do The Knock because I haven't done anything really significant since Doctor Who.
I take every job on its merits.
As any actor will tell you, the hardest thing to do is small parts, because you focus all your attention and concentration on that small part. When you're playing the lead part, you don't have time to think about the whole of it, so you just have to steam on and get on with it.
I like challenges that test your ingenuity.
The waves of time wash us all clean.