无知的最高形式是当你拒绝你一无所知的东西。
The highest form of ignorance is when you reject something you don't know anything about.
Coal miners are the unsung heroes of America's industrial strength.
运营效率和战略对于卓越的绩效都是必不可少的，毕竟这是任何企业的首要目标。
一个国家的价值，从长远来看，就是它所组成的个体的价值。
The challenges in our lives are there to strengthen our convictions. They are not there to run us over.
每个单子都是一面镜子，反映了整个宇宙的图景。