释义：用兵的方法，以攻破敌人心理防线为上策，攻破城池为下策。

"A good book is a friend that never lets you down."

人生应该树立目标，否则你的精力会白白浪费。

Sometimes you just have to take a leap of faith and believe in yourself.

The discovery of the genetic code was a monumental step in understanding the molecular basis of life.