Those who seek it, undertake anarduous journey and can never be sure thatthey will find it. Judges, however wise oreminent, are human and can make mistakes.

　　There are rare instances when justice almostceases to be an abstract conception.

　　4.Those who seek it, undertake an arduous journey and can never be sure that theywill find it.

　　那些寻求正义的人走的是一条崎岖的道路，从来没有把握他们最终将到正义。

　　语言点:句子结构分析:who seek it是定语从句，修饰those。That引导宾语从句，交代can never be sure的内容。

　　5.Judges, however wise or eminent, are human and can make mistakes.

　　法官无论如何聪明与有名，毕竟也是人，也会出差错的。

　　语言点:句子结构分析: however wise or eminent(they are)为让步状语从句，这里省去they are是为了避免用词重复。

　　6.There are rare instances when justice almost ceases to be an abstract conception.

　　在个别情况下，正义不再是一种抽象概念。

　　语言点:“there are rare instances when+从句”表示“在极个别的情况下”。