《明史·列传·卷四十三》
现在武臣子弟在闲暇时期不教，恐怕将来有缓急之事时，没人足以委任。 
今武臣子弟闲暇不教，恐缓急无可使者。 
Now, the children of military ministers are not taught in their spare time. I am afraid that there will be nobody can be entrusted with important tasks in case of emergency.