"The difference between correlation and causation is fundamental in empirical work."

对付一个不自由的世界的唯一方法，就是变得如此绝对自由，以至于你的存在本身就是一种反抗。

Go for a business that any idiot can run – because sooner or later, any idiot probably is going to run it.

地球的历史书写在其板块的运动中。

The most important thing in a computer system is the file system.