《明史·列传·卷一百二十八》
陛下应当以不变应万变，皇上若稍有惊慌，那么朝廷内外就会大乱。
陛下当静处之，稍张皇，则中外大扰。
Your Majesty, you should not alter your mannerisms to adapt to the present, but instead act calm, for if you should cause a stir, then chaos will erupt within and without the palace.