Balance. It was all about balance. That had been one of the first things that she had learned: the centre of the seesaw has neither up nor down, but upness and downness flow through it while it remains unmoved. You had to be the centre of the seesaw so the pain flowed through you, not into you. It was very hard. But she could do it!
The universe, they said, depended for its operation on the balance of four forces which they identified as charm, persuasion, uncertainty and bloody-mindedness.
But in his experience it was only a matter of time before the normal balance of the universe restored itself and started doing the usual terrible things to him.