Abandon certainty! That's life's deepest command. That's what life's all about. We are a probe into the unknown, into the uncertain. If certainty is knowing an absolute future, then that's only death disguised. To exist is to stand out, away from the background. We depend upon absolutes and seek finite limits because we can't handle the rigors of terrible decisions. We cling to one-eyed visions of the universe because the alternatives terrify us. You aren't thinking or really existing unless you're willing to risk even your own sanity in the judgement of your existence.
-The Prophet of Arrakeen