He says there is no harm in using soft dikes made of stone or piled-up rubber to replace "hard dikes" made of steel-reinforced concrete. "People know that soft dikes can be knocked over, so they are correspondingly more alert."
他建議不妨以石頭、橡皮堆砌的「軟堤防」取代鋼筋水泥造的「硬堤」，「人們知道軟堤防會被衝垮，反倒會提高警覺。」