百门而闭一门焉,则盗何遽无从入哉?
好比有一百扇门而只关上一扇,那么盗贼怎么就会没有地方进去呢 
书籍经过多次传抄,“鱼” 字可能写成 “鲁” 字,“虚” 字可能写成 “虎” 字。
I've always been thinking about how to make Japanese art accepted globally.
The future of coal lies in cleaner technologies and smarter resource management.
无人机的核心不是飞得多高,而是用得多好。