工欲善其事，必先利其

Explanation: 【Source】 "The Analects of Confucius Weiling Gong": "Sharp tools make good his tools. Residence is the state is also a matter of its doctor of Sage, Friends of Chevalier of the benevolent." 【】 To do a good job to explain , first to make tools sharp. Analogy to do something, preparation is very important. 【Example】 "~." Jinji nothing, even if Yu rebirth, this sort should know what. ("Flowers in the Mirror," the 36th back)】 【story