[jīn yǒu yù kūn]   

金    友    玉    昆    友、昆：指兄弟。对他人兄弟的美称。

友、昆：指兄弟

Both brothers are proficient in knowledge and noted reputation

金断觿决    金波玉液    金科玉条    金童玉女    金口木舌