始皇暴虐，二世無道，項羽、劉邦高舉反秦大旗，兵鋒直指咸陽，但秦朝覆亡不久，楚漢相爭又起。留侯以其智才輔佐劉邦，從下邳到下邑，由楚地到關中，本文首先從歷代點評側見留侯形象與韜略：剛烈復仇→智深能忍→自在灑脫；其次從張良對漢貢獻探索其生命趨向，報韓復仇→無所欲求；最後說明從子房行事見其絕非後世所謂消極「明哲保身」者也。

Being cruel for the first Emperor and idiotic for the second one, Shung Wu and Liu Ban marched in and conquered the city of ShanYan. Not long after being overthrown of Ching Dynasty, the war between Chwu and Han arose immediately. Duke Liu helped Liu Ban in wisdom from the marching line of County ShaPi to County ShaYi, ie from Chwu to GuwanChung. The main point of this article first focused on the comment on the behavior and talent of Duke Liu, ie strong revenge→wisely patient→liberation; secondly, exploring the trend for life of Duke Liu being devoted to Han Dynasty, ie taking revenge on Country Han→without desire; thirdly, being proven not to keep out of harm by discretion for Duke ChiFan himself.