" In modern industrial societies the situation is nearly the reverse. The opportunities for lying are plentiful; privacy is easy to achieve, there are many closed doors. When caught, the social consequences need not be disastrous, for one can change jobs, change spouses, change villages. A damaged reputation need not follow you. By this reasoning we live now in circumstances that encourage rather than discourage lying; evidence and activity are more easily concealed, and the need to rely upon demeanor to make our judgments is greater. And we have not been prepared by our evolutionary history to be very sensitive to the behavioral clues relevant to lying. "

― Paul Ekman , Telling Lies: Clues to Deceit in the Marketplace, Politics, and Marriage