"These are the questions that had been going through Tereza's head since she was a child. Indeed, the only truly serious questions are ones that even a child can formulate. Only the most naive questions are truly serious. They are the questions with no answers. A question with no answers is a barrier that cannot be breached. In other words, it is questions with no answers that set the limits of human possibilities, describes the boundaries of human existence."
--The Unbearable Lightness of Being