There are not many great tragedies written about liars. More often, liars appear as figures in comedy. The only one who is finally fooled by the liar is the liar himself. The perpetual liar ends up victimized by his own bad habit, never supposing that the entire world sees through his earnest smile. There is madness in lying.
Lies make one lose touch with reality.
And then the liar ends up unable to distinguish the true and the untrue. President Clinton is famous for both rhetorical tools. It's lucky for Monica Lewinsky that she has money enough for lawyers. It's luckier for President Clinton that Americans are not much interested in the importance of lying. After all, liars love liars.