On the morality of liars

Almost Everyone Lies, Often Seeing It as a Kindness

Experiments have found that ordinary people tell about two lies every 10 minutes, with some people getting in as many as a dozen falsehoods in that period. More interestingly -- and Libby might see this as the silver lining if he is found guilty -- Feldman also found that liars tend to be more popular than honest people.

"It is not that lying makes you popular, but knowing when to say something and not be completely blunt is in fact a social skill," Feldman said. "We don't want to hear hurtful things, so a person who is totally honest may not be as popular as someone who lies. This is not to say lying is a good thing, but it is the way the social world operates."
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But before you get all high and mighty about how your lies never got anyone killed, consider this. A lot of research shows that serious lies are almost always told with the best of intentions. Think of it this way: Everyone would agree that telling a Nazi knocking at your door that you are not harboring Jews is a lie worth telling -- a heroic, necessary lie. What is harder to understand is that many people who lie for what we feel are contemptible reasons see themselves in the same heroic light.
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DePaulo once conducted a study in which she asked people to recall the worst lie they had ever told and the worst lie ever told to them. In a reflection of how much our perceptions of lying depend on our particular points of view, the psychologist found that many young people reported that the worst lie ever told to them was by a parent who concealed news that someone they loved was sick or dying. By contrast, DePaulo found, parents never thought of such deceptions as particularly serious ethical breaches -- in fact, they saw them as acts of love.