资料来源 : pyDict

世界改良论

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Meliorism \Mel"io*rism\, n. [From L. melior better.]
   The doctrine that there is a tendency throughout nature
   toward improvement. --J. Sully.

资料来源 : WordNet®

meliorism
     n : the belief that the world can be made better by human effort