善不是出自内心的，不能保留；行为不能从自身辩明的，不能去做。善不是出自内心的，只能够勉强支撑一时，必然不能长久。所以也只能使伪善。

We are moving from an economy based on the production of goods to one based on the production of knowledge.

In the landscape of string theory, there are perhaps 10^500 different vacuum states, each corresponding to a different possible universe.