Perfectly impartial
大公無私
During the Spring and Autumn Period (770-476 BC), a very noble official caled Qi Huangyang lived in the State of Jin. One day, the king summoned him to court and asked, "Now that the magistrate position of Nanyang county is vacant, who do you think is suitable for the post?"
春秋時，晉國有位品格非常高尚的大臣祁黃羊。有一次，晉王召祁黃羊入宮問他："南陽縣缺個縣令，你看，應該派誰去當比較合適呢？"
"Xie Hu is the right man for the job,"Qi replied without hesitation.
祁黃羊毫不遲疑地回答說："解狐去，最合適了。
Surprised, the king asked, "Did you say Xie Hu? I thought he's your enemy. Why did you recommend him to take such an important position?"
平公驚奇的問他："你是說解狐？ 他不是你的仇人嗎？你為什麼還要推薦他擔任這麼重要的職位？"
Smiling, Qi Huangyang said, "Your Majesty didn't ask me my personal opinions o Xie Hu. You simply asked me who I thought would be competent for the position. Therefore I recommended Xie Hu.
祁黃羊笑著說： "陛下只問我什麼人能夠勝任這個職位，並沒有問我對解狐的個人看法呀！因此我推薦解狐。"
the king followed Qi's advice and made Xie Hu magistrate of Nanyang county. And sure enough, Xie Hu administered the county very well and won respect from local people and his colleagues.
於是，晉王採納了他的建議，派解狐到南陽縣去上任了。當然，解狐到任後，治理有方，他的同僚和當地百姓都尊敬他。
Some days later, the king again asked Qi Huangyang for his opinions. This time, the king was trying to find a suitable candidate for a court judge position. Qi Huangyiang recommended Qi Wu for the job. Once again, the king was surprised again by the recommendation because Qi Wu was the son of Qi Huangyang. The king asked: "Who do you recommend your son? Aren't you afraid people will gossip?"
過了一些日子，平公又向祁黃羊徵求意見。這回，晉王想找個合適的人選擔任朝廷法官。 "祁黃羊推薦了祁午。平公又奇怪起來了，因為祁午是祁黃羊的兒子。他問道："你怎麼推薦你的兒子，不怕別人講閒話嗎？"
Qi Huangyang replied, "Your Majesty, you asked me who was the most capable person for the position of a judge, and I think Qi Wu is."
祁黃羊說："陛下只問我誰最是合適的，我認為祁午是。"
Although the king was a bit hesitant about making Qi Wu the judge, he nevertheless gave him the position. As it turned out, Qi Wu was an upright and talented judge, who people GREatly respected.
儘管晉王還有些猶豫，他還是派了祁午去做法官。事實證明，祁午是個正直，有才能的`法官，很受人們的愛戴。
Qi Huangyang's actions were praised by Confucius who said, "Qi Huangyang was right. He recommended people according to their abilities and talents, not because of personal sentiments， not because of fearing others'gossip. Therefore, people like Qi Huangyang are referred to as people "without selfish motives".
孔子聽說這兩件事，十分稱讚祁黃羊。孔子說: "祁黃羊是對的。他推薦人，完全是以才能做標準，不因為個人偏見，便不推薦他；也不因為怕人議論，便不推薦。像黃祁羊這樣的人，才夠得上說"大公無私"啦！"
From Confucious'comment came the idiom "Unselfish". Anyone who handles affairs fairly and impartially can be described as "Unselfish;Perfectly impartial".
"大公無私"這個成語就是由孔子的評論而來的，用來形容那些公正無私處理事物的人。