Principally what had changed, according to the Court's ruling, was the "evolving standard of decency" : since Penry, 18 states ruled against use of execution for people with mental retardation.

就法院的裁决看，主要的变化是“道德标准在演进”：自penry案起，18个州否决了对精神发育迟滞者施用死刑。

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Second, that Common Article 3 of the Geneva Conventions represents a minimum standard of decency that must be applied to all detainees, without exception.

CENTERFORSECURITYPOLICY: Applying Geneva

These actions violate international norms and every standard of common decency.

WHITEHOUSE: President Obama on the Situation in Libya

Now, the process of reviewing and selecting a successor to Justice Souter has been rigorous and comprehensive, not least because of the standard that Justice Souter himself has set with his formidable intellect and fairmindedness and decency.

CNN: Transcript of Obama-Sotomayor announcement