唯一使生活成为可能的是永久的、难以忍受的不确定性；不知道接下来会发生什么。
I’ve had my best years after fifty. Age is just a number—it’s your attitude that counts.
编程语言中最重要的东西是语义，而不是语法。
Mathematics is the most beautiful and most powerful creation of the human spirit.
继续前进。
We are all in the gutter, but some of us are looking at the stars.