[T]wo moments, of trance and struggle, mingle in the real life of societyː an undercurrent of conflict and disbelief always counteracts the routines of dependence and deference. Society, no matter how impregnable it seems to its inhabitants, always stands at the edge of the cliff. The petty practical quarrels and normative disputes, endlessly refought to reproduce a social world in the face of divergent interests and changing circumstance, can escalate at any moment into broader and more intense conflicts that put this world at risk.