Medieval men despaired of the will. They thought of humans as wounded and weak. But they respected the intellect. They thought even humans, if we think carefully, have the power to answer the most profound questions of God and the Universe. Modern men worship the will, but they despair of the intellect. The wisdom of crowds; the swerve of random particles; the influence of unconscious biases: all of these contemporary clichés are ways to talk about intellectual weakness-or ways to talk oursel...