The good is a capable state: a bureaucracy that can protect the country and its people, keep the peace, enforce rules and contracts, provide infrastructure and social services, regulate economic activity, credibly enter into inter-temporal obligations, and tax society to pay for it all. It is the absence of a capable state that causes corruption (the inability to prevent public officials, often in collusion with other members of society, from subverting decision-making for private gain), as well as poverty and backwardness.
善是一种能力国家（capable state）：能够保护国家及其人民、维持和平、执行规则和契约、提供基础设施和社会服务、监管经济活动、可信地进行跨期借贷、对社会征税并用之于全社会的官僚体系。能力国家的缺失（无力阻止公职人员以公谋私以至于常常与社会其他成员的利益相悖）造成腐败，也造成了贫困和退步。