《明史·列传·卷一百一十》
上一磨就会显出利器的本色。 侍郎魏学曾后到，高拱迎面问他： 谁可以担当辽东巡抚？ 
侍郎魏学曾后至，拱迎问曰： 辽抚谁可者？ 
“When a weapon is sharpened on a whetstone, its sharpness will be revealed. When the assistant minister Wei Xuegeng arrived later, Gao Gong asked him face to face: “Who can take the post of the governor of Liaodong?”