《隋书·列传·卷二十七》
柳彧上表说： 如今天下太平，四海安宁，治理百姓，应任用这方面的人才。
彧上表曰： 方今天下太平，四海清谧，共治百姓，须任其才。
Liu Yu wrote a memorial saying: Now the world is peaceful and the four seas are peaceful. To govern the people, one should employ talents in this field.