Since the dawn of man, we humans have been learning about ourselves, our planet and our Universe. Personal experience and the scientific method have greatly increased our knowledge over the Centuries; yet, our search for truth goes on. Uncertainty reigns.
Indeed, the more we learn the more we realize how much we do not understand; answers lead to more questions, most of which have yet to be asked. The complexity of our bodies, Earth's ecosystems and the galaxies challenges our rudimentary knowledge. The beauty of uncertainty is that it drives exploration and investigation.
Those who settle for mysticism, accepting belief as truth, forego the magnificent adventure that motivates science-minded individuals. We must defend uncertainty; it guides us, however slowly, toward truth.