You love someone, you've got to let something go.

I rolled back onto the lawn and pressed my forehead to the ground again and made the noise that Father calls groaning. I make this noise when there is too much information coming into my head from the outside world. It is like when you are upset and you hold the radio against your ear and you tune it halfway between two stations so that all you get is white noise and then you turn the volume right up so that this is all can hear and then you know you are safe because you cannot hear anything else

And I know I can do this because I went to London on my own, and because I solved the mystery…and I was brave and I wrote a book and that means I can do anything.

I think most writers feel like they're on the outside looking in much of the time... All of us feel, to a certain extent, alienated from the stuff going on around us.

I am really interested in eccentric minds. It's rather like being fascinated by how cars work. It's really boring if your car works all the time. But as soon as something happens, you get the bonnet up. If someone has an abnormal or dysfunctional state of mind, you get the bonnet up.

Find the extraordinary inside the ordinary.

Siobhan also says that if you close your mouth and breathe out loudly through your nose it can mean that you are relaxed, or that you are bored, or that you are angry and it all depends on how much air comes out of your nose and how fast and what shape your mouth is when you do it and how you are sitting and what you just said before and hundreds of other things which are too complicated to work out in a few seconds.