在美国，犹太人其实是基督教想象的产物。

Data-driven policies are essential to ensure the long-term viability of marine resources.

The most reliable and cost-effective way to improve performance is to use parallelism.

语出西汉·桓宽《盐铁论·疾贪》。表：古代测量日影以计时的标杆。要想让影子正，就要先将标杆树直；要想让下面的人清廉，就要先自己做到清廉。说明上位是下位的表率。