名詞 meliorism:

1. the belief that the world can be made better by human effort

mel.io.rism

n.（名詞）
The belief that society has an innate tendency toward improvement and that this tendency may be furthered through conscious human effort.
社會向善論：認為社會具有變得更好的內(nèi)在傾向和人類有力量促使其改善的信仰或?qū)W說

來源：
Latin melior [better] * see mel- 2
拉丁語 melior [更好] *參見 mel- 2
-ism
-ism

【引伸】
mel.iorist
n.（名詞）
mel.ioris.tic
adj.（形容詞）