go too far
During the late Zhanguo period, there were seven kingdoms on the mainland of China. Among the seven kingdoms, the Qin kingdom was the most powerful one. The ruler of Qin wanted to conquer the other kingdoms to be the ruler of all.
The Emperor of Qin intended to attack the Qi kingdom by going through the kingdoms of Han and Wei.
But his subordinate Fan Ju said: "The Qi kingdom is still powerful now and far away from our kingdom.
Even if we win the battle, we must guard the land of Qi by passing through the kingdoms of Han and Wei.
What if we slowly expand the amount of land we control from here? So we can firmly control every inch of land we conquer. And in the end we will be the ruler."
The Emperor adopted his suggestion, and won many battles.
得寸进尺
战国末期，七雄争霸。其中秦国最强大，并图谋统一天下。
秦昭王准备越过韩、魏两国打齐国。
但策士范雎说：“现在齐国势力还算是强大，但离秦国很远。
即使打胜了，也必须越过韩、魏两国才能到达，很难守住。
所以不如慢慢向外拓展，这样所得的每一寸一尺土地，都 将稳稳当当地为秦国所拥有，这样就能逐渐统一天下了。”
秦昭王便采用了这个策略，果然在许多战役中取得胜利。