11. It has been argued that Mill essentially made a quality-of-life argument for the stationary state . 12. It follows that the stationary states of an MF system are the maximum similarity states. 13. Thus, the rate of transitions between two stationary states is increased beyond that of spontaneous emission. 14. The gravity wave represents a perturbation around a stationary state , in which there is no velocity. 15. Spontaneous decay complicates the question of stationary states . 16. Ricardo did not visualize any economy reaching the stationary state any time in the near future. 17. Mill conjectured that the stationary state of society was not too far away in the future: 18. Thus, the rate of transitions between two stationary states is enhanced beyond that due to spontaneous emission. 19. In Adam Smith s system . the stationary state is distinctly different from the state of underdevelopment. 20. Contrary to both Smith and Ricardo before him, Mill took an optimistic view on the future stationary state .