... mysterious without the spirits knowing about it ] 形容做事极为隐秘，连鬼神都不知道 [ know without learning ] 不用学习，生来就知道。谓天资聪颖 [ little imagined hardly realize ] 竟不知道 .
If you just start with the issue of discipline, we know that without a certain amount of discipline and order in the classroom, it's impossible for learning to occur.