我不完美，我也不假装完美。

幸福的幸里面是一个“幸”，不是一个“辛”。  或者理解成，Y=Why=为什么，I=我。幸福里面没有为什么，只有我。 

没有什么比心里藏着一个未讲的故事更痛苦的了。

我们唯一恐惧的,就是恐惧本身。

The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.

The best technology disappears into the background, enhancing our lives without demanding attention.