“Something else emerges from this discussion about us as human individuals: we're not fixed, stable intellects riding along peering at the world through the lenses of our eyes like the pilots of people-shaped spacecraft. We are affected constantly by what's going on around us. Whether our flexibility is based in neuroplasticity or in less dramatic aspects of the brain, we have to start acknowledging that we are mutable, persuadable and vulnerable to clever distortions, and that very often what we want to be is a matter of constant effort rather than attaining a given state and then forgetting about it. Being human isn't like hanging your hat on a hook and leaving it there, it's like walking in a high wind: you have to keep paying attention. You have to be engaged with the world.”