Love is a battlefield, but it's a battlefield worth fighting for.

A proof is a device for convincing someone else that a mathematical statement is true.

要想成功，你必须愿意失败。

夏天的飞鸟，飞到我窗前唱歌，又飞去了。秋天的黄叶，他们没有什麽可唱的，只是叹息一声，飞落在那里。

善良是一种聋人能听、盲人能见的语言。