《明史·列传·卷一百一十》
敌人来了就能将他们遏制在关外，敌人攻进来了就能与他们在关内决一死战。这两方面没有效果，我不逃避罪责。
至则遏之边外，入则决死边内。二者不效，臣无所逃罪。
If the enemy is coming, they can be contained outside the border, and if the enemy breaks in, they can fight to the death inside the border. If these two aspects are not effective, I will not shirk my responsibility.