解释：知道房屋漏雨的人在房屋下，知道政策有失误的人在民间，知道经书错误的人在诸子。

The text is a tissue of quotations drawn from the innumerable centers of culture.

"To understand who we are, we must first understand where we come from."

"That is what is so strange, that people will not believe what is really true, what is before their eyes."

伟大的领导者倾听多于发言，行动多于计划。