Rage and Objectivism by Barbara Branden

My own understanding of maturity is that it requires the ability to live with uncertainty. Because no matter how much we know, how much we learn, we always are faced with many uncertainties—uncertainties about ourselves, about other people, about the world. No one can once and for all tie reality into one pretty parcel for us and tell us we need never doubt or wonder again. If we cannot accept this fact, and live comfortably with it, we are in very deep trouble indeed. How wonderful it is to find answers in an area where before we had only doubts and questions and uncertainties. And it can be equally wonderful to find new questions where before we thought we had certainty—and then to leap into the unknown in the search for knowledge. Surely this is a substantial part of what the richly lived life is all about.
It is the people who cannot bear to live with uncertainty who are the greatest threat to Objectivism. They are the ones we must beware of. We must never let them tell us that we are culpable for what we do not know, for our doubts, for our questions, for our disagreements with aspects of Objectivism. We must wear our uncertainties as a badge of honor, for it is only through uncertainty that we will find the path to knowledge.