...There are also those who inadvertently grant power to another man's words by continuously trying to spite him. If a man gets to the point where he can simply say, 'The sky is blue,' and people indignantly rush up trying to refute him saying, 'No, the sky is light blue,' then, whether they realize it or not, he has become an authority figure even to such adversaries.
NASA has decades of experience in studying the effects of Sick Building Syndrome (SBS) and their experiments show that continuous habitation of an alien environment in Space results in sickness in less than a year in astronauts and a similar environment on Earth produces ill health in humans in just two years.
The Coin of Life example: Say you have a coin with heads on one side and tails on the other side. One side would mean good and the other bad, based on your interpretation or bet of which side of the coin represents a win for you. However, you can't decide the outcome and the coin flips many times throughout your life. Finding balance is flipping the coin in such a way that neither of the sides is of greater importance to you, but if the coin lands on the middle bit, you realize that the space between what you consider good or bad is so small and the probability of landing there is also incredibly small without continuous practice. However, no matter the outcome, you choose to accept the coin as it is, with both sides, and appreciate the importance of both in your life. For the coin of life has meaning and value no matter what side it lands on. It's each individual's choice whether to bet on the outcome or not, but ultimately your coin of life will be spent somehow.