今天很好，今天很有趣。明天又是新的一天。

"Life, he realize, was much like a song. In the beginning there is mystery, in the end there is confirmation, but it's in the middle where all the emotion resides to make the whole thing worthwhile."

数学是给不同事物起相同名称的艺术。

真相是，生活既美妙又可怕，既迷人又恐怖，既甜蜜又苦涩，这就是一切。