《韩非子》有形之类,大必起于小;行久之物,族必起于少。故曰:“天下之难事必作于易,天下之大事必作于细。”是以欲制物者于其细也。故曰:“图难于其易也,为大于其细也。”千丈之堤,以蝼蚁之穴溃;百尺之室,以突隙之烟焚。故曰;白圭之行堤也塞其穴,丈人之慎火也涂其隙。是以白圭无水难,丈人 “Han Feizi” tangible and the like, big must be small; long trip things, the family will play in less. Therefore, saying: “The world’s difficulties will be made easy, the great things in the world will be made in detail.” Therefore, said: “difficult to figure it easy to also, as more than its fine.” "Tens of embankments, to ants collapse of the hole; hundred feet of the room to the crevice of the smoke. Therefore, it said; Bai Kyu embankment also Cypriot hole, wife’s caution fire is also painted the gap. Based on Pak Kyu no water, husband wife