does it have to be kept?

1. had a good time last night with high school friends. sat around, chilled, shot the bull until the wee hours--gotta love college. 
2. no classes today! did laundry, caught up on magazines/tv shows, considered baking cookies. maybe tomorrow.
3. i'm enjoying having a nothing weekend. plan on doing work tomorrow, maybe watching a movie, watching the SNOW (yes, did i mention it's snowing?!) and baking cookies.

i already know what i want to talk about tomorrow night--big night and big topic! so look forward to that. but tonight i want to talk about truth. it seems as if people never discuss what is the truth, only what is a lie. lies seems to be gray, nebulous things that are so hard to discern. well, from some schools of thought that's how lies are considered. others define lies as untruths. but that brings me back to my original question--what is the truth? how can one thing be defined by its antithesis? so the truth is...whatever is not a lie? but a lie is an untruth, a skewed version of the truth? see my problem? how can a definition contain the antonym--that seems like cheating. so for something to be a lie, it can either be said or unsaid. but is it the same for a truth? is the truth spoken, known, unspoken? and i think it's weird how something unsaid is a lie, but when spoken suddenly becomes a truth. think about it--someone keeps something from you and tells you something else (a lie); but when the something being kept is spoken aloud, it becomes a truth. the rapid transformation is so interesting to me. lie-->truth. and truth can become a lie when it is then not disclosed. truth-->lie. so then is it truth<-->lie? i think that makes sense. i feel like a philosophy student writing a dissertation.