Jack¹ of all trades and master of none.门门精通，样样稀松。

Judge not from appearances.人不可貌相，海不可斗量。

Justice has long arms.天网恢恢，疏而不漏。

Keep good men company and you shall be of the number.近朱者赤近墨黑。

Kill two birds with one stone.一箭双雕。

Kings go mad, and the people suffer for it君王发狂，百姓遭殃。

Kings have long arms.普天之下，莫非王土。

Knowledge is power.知识就是力量。

Knowledge makes humble², ignorance makes proud.博学使人谦逊，无知使人骄傲。