He held my hand and told me a story about when he was six and threw a rock at a kid's head who was bullying his brother, and how after that no one had bothered either of them again. 'You have to stick up for yourself,' he told me. 'But it's bad to throw rocks,' I said. 'I know. You're smarter than me. You'll find something better than rocks.

At the most simplistic level physicists tell us that what we see as reality is not actually accurate. A rock looks solid to us but it's full of empty space and atoms moving and we see it as solid because we need to because it helps us survive, right? Survival being our goal. You can extrapolate that to many other things.

Sometimes I get the feeling that we're just a bunch of habits. The gestures we repeat over and over, they're just our need to be recognized. Without them, we'd be unidentifiable. We have to reinvent ourselves every minute.

There are moments when a kind of clarity comes over you, and suddenly you can see through walls to another dimension that you'd forgotten or chosen to ignore in order to continue living with the various illusions that make life, particularily life with other people, possible.

The truth is the thing I invented so I could live.

The clarity was startling and Samson wondered whether he was imagining these moments. Not that they hadn't happened at all, but that they had been embellished by details from elsewhere, fragments that survived the obliteration of other memories, vagrant data that gravitated and stuck to what was left to remember. But in the end he rejected this idea. The memories were too perfect: take one detail away and they collapsed into disorder.

When I was with Yoav, everything in me that had been sitting stood up. He had a way of looking at me with a kind of unabashed directness that made me shiver. It's something amazing to feel that for the first time someone is seeing you as you really are, not as they wish you, or you wish yourself, to be.