Why do we lie? Because we are frightened of being humiliated, being treated like an object, being rejected, losing control of things, and, most of all, we are frightened of uncertainty. Often we get our lies in before any of these things can happen. We lie to maintain our vanity. We lie when we call our fantasies the truth. Lying is much easier than searching for the truth and accepting it, no matter how inconvenient it is. We lie to others, and, even worse, we lie to ourselves. In both private and public life, we damage ourselves with our lies, and we damage other people. Lies destroy mutual trust, and fragment our sense of who we are. Lies have played a major part in climate change and the global economic crisis. Fearing to change how they live, many people prefer to continue lying rather than acknowledge that we are facing a very uncertain but undoubtedly unpleasant future unless we learn how to prefer the truths of the real world in which we live rather than the comforting lies that ultimately betray us. We are capable of changing, but will we choose to do this?