有些秘密是不能被说出口的。
There are some secrets which do not permit themselves to be told.
The quality of an organization's learning determines the quality of its improvement.
我们观察到的不是自然本身，而是自然暴露于我们提问方法下的样子。
我是火星人，没人能触及我。
The greatest enemy of a good plan is the dream of a perfect plan.