" It is always the best policy to speak the truth--unless, of course, you are an exceptionally good liar."
" Lies are like children: they're hard work, but it's worth it because the future depends on them."
" A liar should have a good memory."
" A lie told often enough becomes the truth. "
"The best liar is he who makes the smallest amount of lying go the longest way."
“I'm not upset that you lied to me, I'm upset that from now on I can't believe you”
“A single lie destroys a whole reputation for integrity”
"He who permits himself to tell a lie once, finds it much easier to do it a second and a third time till at length it becomes habitual. "
“The liar's punishment is not in the least that he is not believed, but that he cannot believe anyone else.”
"Liars are the cause of all the sins and crimes in the world. "
"Clever liars give details, but the cleverest don't. "
“The man who fears no truth has nothing to fear from lies.”