1、Better late than never

2、The unexamined life is not worth living

3、Knowledge is power. 知识就是力量。

4、A friend in need is a friend indeed. 患难见真情。

5、Where there is a will, there is a way.有志者事竟成。

6、Failure is the mother of success. - Thomas Paine 失败乃成功之母。