“The choice is not between being positive or negative. The issue is whether we start with the facts or with our attitudes. What positive psychology gets right is that when we confront reality, we always have some control over how we then respond to it, and that a lot of misery is avoidable if we try to make the best rather than the worst of things. In practice, however, this sensible advice often degenerates into an excessive optimism, in which reality is whatever we think it to be. But you can’t make the best of a bad situation if you pretend it’s really just a good one in disguise.”