I think part of the problem here is the strength of the word 'lie', it's like the misuse of the word 'Excuse' these days, as though it means an attempt to wriggle out of trouble rather than justification for your actions.
Osiris is right if you consider there to be no 'real' truth, that no single person could possibly be in possession of enough facts to state 'The Truth' without question.
To use the Lawyer analogy, a prosecution lawyer would say, 'On the night of Feb 25th you Murdered Mr X', the Defence would say, 'On the night of Feb 25th, you met Mr X, who had been looking down your girlfriends top all night, had then proceeded to argue with him, he threatened your gilrfriend and the next thing you knew, he was dead and you had your hands around his neck.'
Both are the 'truth', both are 'lies', depending on your side of the fence. Both play on human emotion in a particular way, The first is cold, factual, appeals to the demand to right wrongs, to see order. The second is human, it has a story, and we all like stories to have happy endings, we can empathise more.
We can state what we truly, in the core of our beings believe to be the truth, and there is nothing whatsoever wrong in doing that, but is it the truth, or simply what every instinct in your body tells you is the truth, and, at the end of the day, does it matter which it is?