The one element which is of first importance in scientific management is the task idea.

The best technology is invisible. It works so well that you don't even notice it.

我们都是进行中的实验。

Nature has been the greatest chemist of all time, and we are just beginning to understand its secrets.

祸患转化为幸福，把失败作为成功的根基。如能留的青山在，就不怕没柴烧。