people lie becuase they are afraid, afriad to admit the truth to you, sometimes even themselves, they're afraid to face the consequences, they're afraid of what it might do to yal's relationship. people lie becuase sometimes it's just easier to tell a lie, the admit the truth. people lie because other people lie, people lie because they can't help it, people lie becuase they want/need to feel wanted/needed (ever came across one of those women who are always pregnant, yet they never seem to have a baby for one reason or another?) people lie becuase they're told to do so, people lie becuase they're told not to. most importantly, people lie becuase it's human nature, just like hate, and territorial-ness among other 'bad' things, they aren't going to go away, all you can do is make sure YOU don't do those things, there's always going to be people who lie, kill, and steal...