We can't see into the minds of others, and what I've observed is that many of the people who lie, do not even seem to realize they are lying. They don't accept

We can't see into the minds of others, and what I've observed is that many of the people who lie, do not even seem to realize they are lying. They don't accept themselves as liars. They twist their view of reality to the point where the self serving lies are truth. I've seen this reality change almost instantaneously when the needs of the lie shifted. Think about politicians. Do politicians know they're lying when they lie? I think in some cases this is the case, but I think in many cases they have convinced themselves of the lie for so long that they can't even conceive that it isn't the truth. Probably goes a long way towards making them convincing to others.