《贞观政要·卷十·论灾祥》
政治上，应崇尚清静，不要无休止地开疆拓土，应马放南山，刀枪入库，但也不可忘了军备的必要。
务静方内，而不求辟土；载弓矢，而不忘武备。
Politically, one should esteem peace and quiet, and not endlessly conquer new territories. One should keep the horses in the southern mountains and store away weapons, but one should also not forget the necessity of military preparedness.