The motion of the universe is eternal.

In the search for truth, there are no final answers, only better questions.

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

使变量可变很容易。控制恒定的持续时间是诀窍。

The difference between good and great is the attention to detail.

If you don't like something, change it. If you can't change it, change your attitude.