From 《
孟子·
梁惠王下》 (Mencius: King Hui of Liang II). Mencius's graduated test of a death-penalty case runs: 『
左右皆曰可杀,
勿听;
诸大夫皆曰可杀,
勿听;
国人皆曰可杀,
然后察之,
见可杀焉,
然后杀之』— even if attendants, then ministers, then all the people agree, the ruler must personally verify before acting.
左右 ('left-and-right') means the inner circle of courtiers.