一虎不河

Explanation: Originally referred to the empty-handed stroke a tiger on foot to cross the river metaphor foolhardy, adventure drama metaphor in the Yuan ◇ acting recklessly. 　　Source: "Poetry Xiaoya Little Zong" not violent tiger, not Feng River. "" The Analects of Confucius described the "violence Tiger Von River, dead regret who I do not and are. Will have temporary thing and fear, those who have made a good plan."