格瓦拉第二次漫游南美前对母亲说

The balance between production and conservation is delicate, but achievable.

Innovation is the driving force of enterprise development, without innovation there is no future.

There is no more intrepid a voyager than the philosopher.

"Every saint has a past, and every sinner has a future."

Silence can be the loudest element in a piece.

中心地的等级越高，其数量越少，影响范围越大。