Truth

When we were given our prompt for the final exam, I immediately began grappling with the idea of truth. While it is fairly easy to identify a lie, it is often hard to decide what is truthful. For example, as little kids, my brother would often try to push me down the stairs :( When he succeeded and my mother would angrily ask him if he pushed me, my brother would respond 'she fell'. While this wasn't exactly a lie, I did fall, it still wasn't the whole truth. But could it still be considered truthful?
While thinking about this I remembered a story that I had read during my Freshman year, called The Allegory of the Cave by Plato. In this story some people are chained to the ground and forced to look forward in a cave. A fire is burning behind them, causing shadows to be cast on the wall in front of them. When one man was freed and shown the real world, he came back only to his friend's laughter. They laughed because, to them, the shadows were the real world, because they hadn't ever known anything else. But who are we to say our world is the real world? What if we're just seeing shadows?
This keeps leading me to the conclusion that truth, like so many other things, is relative. What is true to one person could be false to another based on what they know and see every day. Basically, experience shapes all of what a person believes.