Aidan Chambers said this quote

Things it helps me to rememberWhen in a bad mood, keep quiet or still.Baggy jumpers don’t suit you.When you’re tired you get doubtful.Difficulties come in spurts.Listen to the echo of your own voice. Avoid be strident.All aeroplanes go through clouds during their journeys. So do people during theirs.Often greater clarity comes out of confusion. You have to be puzzled before you find a solution.PMS often brings on a crisis of confidence.Ordinariness is restful.If someone is explosive in front of you, be silent. If you feel explosive, be silent.