宇宙不仅比我们想象的更奇怪，而且比我们能够想象的更奇怪。

I always try to be positive, even in difficult moments.

The sky is not the limit; it is the beginning.

世界是一个没有结局的故事。

盈利和目的并不相互排斥，它们越来越相互依赖。

It is not the computer's fault that Maxwell's equations are not adequate to design the electric motor.