Overview

A methodology for extracting lessons from historical patterns of dynastic rise and fall (兴坏之端) to guide present governance.

Steps

1. Observe the beginning - How did a dynasty or state originate?

   • 积善累功
   • 天命
   • Military conquest

2. Track the development - What sustained the state?

   • 德治
   • 制度
   • 形势

3. Identify the turning points - What caused decline?

   • 骄奢
   • 失德
   • 形势变化

4. Analyze the end - How did it fall?

   • Internal rebellion
   • External conquest
   • Gradual decline

5. Extract principles - What general lessons emerge?

   • 仁义为本
   • 形势虽强
   • 德泽后世

6. Apply as mirror - Use 居今之世，志古之道，所以自镜也

Decision Points

• When patterns repeat across multiple cases: establish as general principle
• When cases contradict: investigate specific circumstances
• When outcome seems inexplicable: consider 天命

Expected Outcomes

• Understanding of why states succeed or fail
• Guidance for current governance decisions
• Framework for evaluating political situations

Validation

1. Confirm each case has been analyzed through all four phases: origin, development, turning points, and conclusion
2. Verify that extracted principles are tested against multiple historical cases — repeated patterns are established as general principles, contradictions are investigated
3. Check that the analysis functions as a mirror for present governance (居今之世，志古之道，所以自镜也) with actionable insights