If the whole world is evil, then the tragedy that befell you is justified," she went on. "That would make it easier for you to accept the deaths of your wife and daughters. But if good people do exist, then, however much you deny it, your life will be unbearable; because fate set a trap for you, and you know you didn't deserve it. It isn't the light you want to recover, it's the certainty that there is only darkness.
Paulo Coelho