1、 时间就是金钱. time is money.

2、 不劳则不得. no pains,no gains.

3、 时阴似箭. time flies like a arrow.

4、 学无止境. there is no ending to learning.

5、 知识来自勤奋. knowledge comes from diligence

6、 生活有限，知识无限. art is long,but life is short.

7、 只会努力不会玩，聪明的孩子会变傻. all work and no play makes jack a dull boy.