"The past is a puzzle, and every piece matters."
The old-fashioned dictator does not exist under scientific management. The man at the head of the business under scientific management is governed by rules and laws which have been developed through hundreds of experiments just as much as the workman is.
理性预期假说并不意味着人们能够完美地预测未来。
All things are possible until they are proved impossible and even the impossible may only be so, as of now.