阻止百姓批评的危害，比堵塞河川引起的水患还要严重。指不让百姓说 话，必有大害。《国语·周语上》：“防民之口，甚于防川。川壅而溃，伤人必多。民亦如之。”
It will cause more harm to stop the free flow of people's thoughts than to stop that of the rivers.
防(fáng)
民(mín)
之(zhī)
口(kǒu)
()
甚(shèn shén)
于(yú)
川(chuān)
