There were two opposing views of development in the 19th century. A push performance degradation is based on the second law of thermodynamics system, it argues that, due to the dissipation of energy, the world tends to be weak, the universe tends to "heat death", the structure of the retreat, disorder tend to the maximum, the whole world over time and the process of dying; Another is based on Darwin's theory of evolution of the evolution of the concept system, it points out that social evolution is the result of the increasing division of species, the evolution and increased, structure complex and orderly, and constantly reinforced by functional evolution, all nature and human society are to develop more advanced, more orderly organization structure. (2) actual income -- the increase of material wealth; Micron said revenue in the first quarter of fiscal 2018 was $6.83 billion, up 71% from a year earlier, and 10.8% month-on-month. GAAP reported a net gain of 26.8 in beauty, compared with $180 million in the same quarter last year and $2.37 billion last quarter. For the past five years, I've been using the west coast service every week, booking tickets 12 weeks in advance to get the cheapest prepayment, currently at 17 pounds. In 1937, American economist Robert coase (R. H. Coase's publication of the essence of the enterprise is considered to be the beginning of a discussion on this issue.