解释：在人活动范围内的水就污浊，在野外无人地方的水就清洁。同为一样的水，都是从天边开源，有的混浊有的清洁，这是它们所处环境使它们这样的。

The ideas I had about supernatural beings came to me the same way that my mathematical ideas did. So I took them seriously.

"The quantum internet will be to today's internet what the telescope was to the naked eye."

我从不允许自己对任何事情有意见，除非我比他们更了解另一方的观点。

"You can't go back and change the beginning, but you can start where you are and change the ending."

在快速变化的世界中，适应性至关重要。