It appears to me that life, nature, and dice always arrive in polar opposite pairs; not always, but often enough. If I throw a pair of dice, I invariably get a six and a one. If I get a raise at work, the transmission in my car blows up, thus nullifying any potential extra money I may have planned on. Often the opposites are not equal in strength; a big positive is only partially offset by a minor negative, or vice versa – so equality in a specific event is not a given. This concept helps me understand the optimists and pessimists of this world; optimists believe life will be driven by more wining pairs than losers, and pessimists favor the opposite. However you view the world, your glass is rarely empty or completely full, it is somewhere in between. The trick to living a happy and fulfilling life then, is to manage the level in the glass.