Where does the line fall between opinion and knowledge? Just how certain can we be of our ideas and notions that we so strongly believe in? If only for a moment, stop and consider the differences in human opinions and how they divide us. More importantly, consider how often they are entirely contradictory—yet we express them with such assurance and conviction. From this contradiction, we may conclude that there is no such thing as truth, or perhaps that man is not equipped to know it.