Gray is underrated. Personally, I tend not to trust people who are completely sure of their political beliefs. But that may make me a miserable sumbich, and their lack of doubt may mean they're the happiest people on the planet. Now that's something to get truly unhappy about. From the Economist, via the Daily Dish:
[E]xtremists of both sides are happier than moderates. Some 35% of those who call themselves “extremely liberal” say they are very happy, against only 22% of ordinary liberals. For conservatives, the gap is smaller: 48% to 43%. Extremists are happy, Mr Brooks reckons, because they are certain they are right. Alas, this often leads them to conclude that the other side is not merely wrong, but evil. Some two-thirds of America's far left and half of the far right say they dislike not only the other side's ideas, but also the people who hold them.