It is ignorant to study alone without friends.
3, the past is not forgotten, the teacher of the future.
4, but there is no stone in the advection, and it is always said that there is sinking.
5, don't do evil, don't do good.
6. Change if you have it, and encourage if you don't.
7. Worry can rejuvenate the country, and leisure can die.
8, words must be believed, and actions must be fruitful.
9, many lines of injustice will be hanged.
10, be prepared for danger in times of peace, be prepared for danger, be prepared for danger.