translation.en: He said that they have a science behind that art, and they've actually created four essential pillars, nine key indicators and 72 different metrics that help them to measure their GNH.
translation.zh: 而且他说他们在这种艺术的背后有一种科学 他们实际上创造了四个重要的支柱， 9个核心指标 和72个不同的度量标准 这些能够帮助测量GNH。