【摘要】 休谟所提出的"是"与"应当"(ought to)问题其实是"是"与"应当是"的关系问题,其中包括两个问题:事实判断如何与价值判断相推,实然判断如何与应然判断相推。如果认为应当即必然有价值,允许即可能有价值,这样虽然"是"与"应当是"不能直接相推,但"A是应当的"可以推出"A是有价值的"可以推出"A是允许的"。更多还原

【Abstract】 Hume’s "is"and "ought to"question is about the relationship between "to be"and "ought to be"which includes two questions: how to infer judgments in facts and judgments in value,and how to infer to be judgment and ought to be judgment. "Ought to be"is thought to"be necessarily valuable","permit"is "possibly valuable",thus,although such a"to be"and"ought to be"can not be directly inferred with each other,"A ought to be"can infer "A is valuable",and "A is valuable"can infer "A is permissible. "更多还原