《战国策·楚一·张仪相秦》
所以进攻其它国家的规律，必然对外断绝这个国家的邦交，对内驱逐这个国家的谋臣。
故攻有道，外绝其交，内逐其谋臣。
Therefore, the rules of attacking other states are undoubtedly to cut off diplomatic relations with the state externally and expel its advisors internally.