《百战奇略·第三卷·形战》
敌人的兵力分散，那它的每处兵力就会减少；而我军集中兵力于一处，兵力自然众多。
敌势既分，其兵必寡；我专为一，其卒自众。
If the enemy's forces are dispersed, then its strength at each point will be reduced; while if our forces are concentrated in one place, the strength will naturally be great.