最佳答案：

1、He is not laughed at that laughs at himself first. 自嘲者不会让人见笑；

2、He laughs best who laughs last. 谁笑到最后，谁笑得最好；

3、Not to know what happened before one was born is always to be a child. 不懂世故，幼稚可笑。