Where Has Entropy Gone: Theory of General System (II)
  A pair of symmetric expressions for the second law of thermodynamics is put forward. The conservation and transfer of entropy is discussed and applied to problems like biology, culture and life itself. A new explanation is given to the cosmic expansion with the concept of diversity in this theory. The problem of contingency and necessity is also discussed. 
Wang Zhen (Dept. of Phys., Liaoning Normal University)