《贞观政要·卷九·论安边》
突厥的残余部落，前来投奔我们，以保全性命。把他们安置在中原内地，传授给他们礼教法令，选拔他们的首领，派卫兵驻守那里，让他们畏惧大唐的威严，感激大唐的恩德，这有什么可担忧的呢？
突厥余魂，以命归我，收居内地，教以礼法，选其酋首，遣居宿卫，畏威怀德，何患之有？
The remnants of the Turkic tribes have come to seek our protection in order to save their lives. What need is there of anxiety in settling them in the heart of China, teaching them our rites and laws, appointing their leaders, stationing guards there, and making them both fear our majesty and appreciate our favor?