几个世纪以来，印第安人发展了手语来传达人们感兴趣的现象。来自不同部落（FORTRAN，LISP，ALGOL，SNOBOL等）的程序员可以使用不需要他们在小马上扛黑板的程序员。
The only way to do great work is to love what you do.
译文：答应别人的话，千两黄金都不能更改。
Learn how to tie a bowline knot. Practice in the dark. With one hand. For the rest of your life you’ll use this knot more times than you would ever believe.
The notion of truth is not definable in any formal system that is strong enough to include arithmetic.
人生不是自己选择的，但也是选择的。
We are the sum of our ancestors' struggles.
We don’t do market research. We just make things we believe in.