Tolerance is central to the structure of the liberal democratic tradition, and traceable to its inception. If a change has occurred regarding its place in our moral universe, it is the sharp increase in the intensity with which it is invoked as a motivating principle by political leaders, social activists, and citizens. We might be tempted to rejoice in this development as testament to the good health of our institutions if, at the same time, other liberal values that used to be inseparable from tolerance were not being undermined. But this divergence indicates that people increasingly rely upon tolerance because other Enlightenment values such as reason, equality, and liberty have lost the power to inspire.