We tend to think of dangers and uncertainties as anomalies in the continuum of life, or irruptions of unpredictable forces into a largely predictable world. I suggest the contrary: that dangers and uncertainties are an inescapable dimension of life. In fact, as we shall come to understand, they make life matter. They define what it means to be human.
Arthur Kleinman (2007). “What Really Matters: Living a Moral Life Amidst Uncertainty and Danger”, p.1, Oxford University Press