Confucius (551-479 BC) once praised Zichan,a contemporary statesman,for his wise policy on running the State of Zheng.

• “宽以济猛，猛以济宽，政以是和”是孔子赞赏政治家子产“对严厉辅以宽容，对宽容辅以严厉”的治国主张。