I’ll close with one of my favorite quotes by Shakyamuni Buddha, which Fogel includes before the Preface: “Your worst enemy cannot harm you as much as your own unguarded thoughts.

现在，我用自己最喜欢的一句话作结，引述自释迦牟尼佛祖，在霍格尔著作的序中提及：“你自身封闭想法越多，你内心的敌人就越强大。”

youdao

An enemy force that is dispersed in an urban area or other close terrain, and perhaps intermixed with the noncombatant population, is highly difficult to find and attack.

一支疏散到城市或者其它封闭地形下，以及可能与非战斗人群混杂在一起的敌军，是非常难以发现和进攻的。

youdao

The occurrences of Eotetranychus kankitus Ehara are in very close relation with weather, natural enemy, living environment, human factor, etc.

柑桔始叶螨的发生与气候、天敌、生活环境和人为因素等关系十分密切。

youdao

No women are deployed in the infantry where the primary role is to "close with and kill" the enemy - to engage in hand-to-hand combat.

BBC: Baby birth shock for soldier on Afghanistan deployment

With the enemy just feets away -- some so close he could see their faces -- Rob held his ground.

WHITEHOUSE: Medal of Honor for Staff Sergeant Robert J. Miller