牛痘可以保护人体免受天花的感染。

最危险的事情是活着。但这也是最美丽的。

There is only one real tragedy in a woman’s life. The fact that her past is always her lover, and her future invariably her husband.

小说是一个伟大的发现：远比伽利略的望远镜或别人的无线电报更伟大。

我只是尽量保持冷静，不让压力影响我。